User manual

Finding your way around

StreamerEditorPro brings the editing workflow together in one main window. The top commands create, open and save projects, process batches and change the language. Tools contains Relink Media, Diagnostics and this manual; F1 opens it too.

The tabs follow the workflow: Automatic Montage prepares scenes; Timeline reviews them and opens the Visual Timeline; Text & Logos manages overlays; Export creates the final file; Shorts Studio prepares short-form projects; SRT Subtitles creates or edits captions; Audio handles sound tracks.

The diagram shows the window layout; it is not a screenshot. The bottom status area reports activity, progress, save state and the automatic-save reminder. Visual Timeline and Edit Scene open separately and remain connected to the current project.

Updates at startup

In the Update window, Check for updates at startup is selected by default. Clear it to disable this check; your choice is kept across launches and updates. Check remains available for a manual search. When enabled and an update is found on the selected channel, a download and installation offer appears at startup. You may decline; installation does not start without consent. You can save your project before closing the application. Same-version rebuilds use the SHA-256 comparison explained in Troubleshooting.

SEP icons and Windows scaling: the logo keeps its artwork and colours. The ICO now contains 26 native sizes from 16 to 256 pixels, including 20 and 40 pixels for 125% scaling. Windows select their small and large icons for the current monitor and reapply them after creation or a monitor change. This covers the main window, secondary windows, manual, history and GPU/HDR previews. GPU windows also receive their native icon after their window is created and after a display-mode change.

Secondary windows share icon images and reuse native resources. Closely spaced size changes are coalesced, and deferred updates are cancelled when a window closes. This correction does not change overall application scaling. The executable, shortcuts and installer use the same multi-resolution ICO on their next rebuild; an already open application must be restarted with the updated build to display the correction.

DEMO mode and full-version activation

The activation window shows licence status, client, email, edition, expiry, machine ID with Copy ID, activated/allowed computers and the last online check. Computer counts reflect that check, not continuous monitoring.

From build 16, the licence bar shows DEMO or FULL VERSION. Editing, previews and project saving remain available without a licence. Projects retain every source and their full duration; only delivery copies are limited.

DEMO video and batch exports are limited to 60 seconds, a maximum of 1280 × 720 and 30 fps, with the StreamerEditorPro DEMO watermark. Aspect ratio is preserved; portrait video fits within these bounds. Audio exports and AI narration are limited to 60 seconds. Delivered demo AI images and YouTube cards are limited to 1280 × 720 and watermarked. AI video variants follow the same video limits. AI previews remain available; optional local components require separate installation.

Click Activate full version, paste the key issued for StreamerEditorPro and click Activate with Internet access. Once validated, new exports immediately use the full features without reinstalling or reopening the project. An export already in progress keeps its starting mode. Existing demo files remain watermarked and can be exported again from the complete project.

Activation is bound to the computer and the authorised computer limit. A StreamerPro key does not unlock StreamerEditorPro. Checks run at startup and periodically; a signed activation may work offline for up to 30 days, never beyond licence expiry. Network downtime does not erase a still-valid activation. Suspension, revocation and released computers take effect at the next online check; the offline allowance is the maximum delay. Check online provides a manual check.

The licence stays in the Windows account’s user data, outside projects and the installation folder. Updates preserve this data. A computer change may require releasing the old computer in Administration → Licences StreamerEditorPro. Administrators create keys, choose duration and computer limits, suspend or revoke licences, release computers and inspect history. Statistics distinguish StreamerEditorPro and mark incomplete periods. No automatic Stripe payment flow is added for this product.

Create, open and save a project

Click New to begin or Open to resume a .sep project. It stores scene order and cuts, tracks, transitions, overlays, audio settings and export destination. Original media remain separate files. If a newer project format is refused, use a compatible application version; do not manually change its format number to force it open.

Save with Save (Ctrl+S). Automatic saving runs periodically; its state appears at the bottom. After an unexpected close, the application may offer recovery. Review the restored content, then save it to the usual .sep file.

After a successful save, one .auto.sep copy keeps the previous version and is replaced at the next save. It is neither a full version history nor an external backup: also keep an independent copy of your work and media. To move a project and its AI results, follow Media, cache and recovery; if sources moved, use Tools → Relocate media.

Opening projects with NAS media: reading the SEP file, checking its data and restoring cards and AI audio tracks run in the background. The status bar shows the stages; Cancel preserves the current project, as does a read error. Unsaved changes still require confirmation before replacing the montage. Missing media are checked after the project is displayed without blocking the interface, and results for another project are ignored. The saved video destination is restored without waiting for its network folder.

Save and Ctrl+S save to the active file. A new project prompts for a file on its first save. Save As and Ctrl+Shift+S open the name and folder chooser with the current project values. The selected file becomes active after a successful save; cancel keeps the current path.

Automatic Montage and analysis

Add one or more camera-video folders and, if needed, drone-video folders. Include subfolders, remove a selection or replace a folder. Separate groups can alternate footage; choose their order before analysis.

Music is optional. Automatic normalization uses the same 100% sample-peak principle as Normalize in Audio for music and enabled video-audio clips, adjusting gain without changing originals. It does not guarantee uniform perceived loudness; see Audio for the distinction from LUFS. Set target, minimum and maximum scene durations, allowed source durations, minimum quality and per-category limits. A zero target lets the application determine duration from sources and music.

Choose a profile and automatic enhancement. The HDR effect is optional: tick its box, then adjust from 0 to 100%, initially 20%; see Video for the distinction from HDR10 export. Select available analysis processing, then Analyze and Create Montage. Scores and smooth passages guide selection; they are not calibrated probabilities or a stability guarantee. Review selected scenes. Follow the report; sources are read, not cut or replaced.

Before automatic analysis: clicking Analyze and create montage first checks the frame rates of eligible videos in the camera and drone folders. If they differ, Video frame rate opens before image analysis: choose the target rate and mode, then Review and start analysis… (Ctrl+Enter) and confirm. Automatic keeps the duration of videos with an audio stream and adjusts the speed of videos without audio. Cancel stops the launch and keeps the existing montage. If all frame rates match, analysis starts directly. Metadata is read in the background and reused during analysis.

Montage construction and NAS sources: passage grouping, folder assignment and quality control compare recorded paths without repeatedly resolving each network file. Paths are still checked when operations actually read media. Selection progress shows the number of scenes processed; Cancel is checked between scenes and while grouping candidates. The log separates source indexing, selection, audio and quality control, camera/drone groups and opening/closing card creation. These measurements help locate remaining waits separately from preview encoding.

GPU analysis and 10-bit video: CUDA decoding and scaling can remain on the GPU; the small resized image is then converted to grayscale for analysis. This avoids an observed FFmpeg crash during luma extraction after a GPU transfer. A pipeline is confirmed only after successful processing. If hardware scaling fails, diagnostics retain the precise error, including an exit code without a message, even when hardware decoding with CPU scaling succeeds. Maximum GPU still prioritizes a validated GPU, and Strict GPU still forbids CPU fallback.

Initial automatic montage settings: Quality defaults to 0.5 and HDR Effect is enabled, with strength 20. Resetting automatic montage settings restores these values. Values already saved in a project are retained when opening it. HDR Effect is an image effect; it does not force HDR10 export.

Automatic Montage thumbnails. “Generate opening and closing thumbnails with local AI (5 seconds each)” is the default for new projects. StreamerAI Studio creates a pair offline at project resolution and inserts it at both ends of the edit. Select the left option for captured frames without AI, or clear the active option to disable thumbnails. Saved projects retain their choice. If StreamerAI Studio components are missing, the edit is created and the log reports that the thumbnails were skipped. Insertion preserves the duration of active music. To compare three proposals per role or use YouTube style, open the assistant in Visual Timeline.

The thumbnail choice is stored as soon as you click. The log reports the selected mode when analysis starts and confirms insertion at the end. The gallery identifies thumbnails created with local AI.

Review and edit a scene

The main Timeline table shows order, source file, source start, source duration, speed, final duration and quality information. Drag a row to reorder. Double-click a scene or select it and choose Edit.

In Edit Scene, adjust source start, duration after speed-up and playback speed. Lock options fix an edge; fluid-segment controls recalculate or reuse a nearby segment when accelerated playback is unstable. Drag the bar handles to refine the start and end.

Play and Stop review the result. Previous and Next change scenes. Video Full Screen (F11) enlarges the preview; Escape or F11 returns to the controls. Save keeps the settings, Apply confirms and continues, Cancel discards this scene’s changes.

The Frame rate adaptation column, after Speed in the Timeline table, describes each clip’s processing at the timeline frame rate. Speed adjusted shows the source and target rates and effective speed factor, for example 25 → 29.97 · ×1.1988. Interpolation indicates calculated intermediate frames. With unchanged speed and preserved duration, 25 → 29.97 gives Repeated frames using Fast; 29.97 → 25 gives Dropped frames. No adaptation means no adjustment is needed. Selecting Interpolation alone does not cause that label to appear: the clip must actually need it. Manual speed and frame rate adaptation combine; multiple treatments can appear together. Still image, Unknown frame rate and Interpolation unavailable (HDR) avoid claiming an inapplicable treatment. Speed keeps showing the overall effective speed. A different export frame rate may require additional resampling. Widen the column or use the horizontal scrollbar to read long descriptions.

Opening Edit scene and moving with Next/Previous use information already loaded without waiting for NAS file checks. Saved fluidity zones are displayed and then checked in the background. Valid zones with passages already analyzed do not trigger another analysis. Returning to a video inspected less than 30 seconds ago reuses its stored duration.

You can change scenes while metadata are being read: the previous request is cancelled and its late results do not replace the new scene. Reused previews are checked in the background; a preview whose source has changed is rejected. Diagnostics record interface preparation and metadata reading separately. Displaying the first image still depends on NAS access and video decoding.

Edit scene — display and pause: when the window opens or after Next/Previous, a still frame is prepared in the background from a valid local preview, if available, or from the source video on the NAS. Wait for this frame to inspect the passage; the player starts only after you click Play. Moving the cursor while stopped prepares another still without starting temporary playback. Pause keeps the current media and displayed frame, without automatically reopening the NAS original, and cancels any pending positioning or resume request. Stop displays a still at the beginning of the passage. The duration saved in the project allows the controls to appear while it is verified in the background; changing the passage boundaries must wait for that verification.

For NAS videos, enable 720p preview for playback and navigation in Advanced options. Once a valid local preview is ready, it is used for playback and navigation within the video. Disable this option to work directly from the originals. The first frame may take longer when it must be extracted from the original. In tests on this PC with 4K HEVC 10-bit originals on a NAS and no local preview, the player sometimes needed about 1.5 seconds to pause. Timings depend on the PC, decoding and network. These preview options do not modify the montage or source files.

Preview engines and CPU fallback: when preparing a new 720p preview, Automatic tries the variants of the encoding engine confirmed at startup before changing GPU. A GPU decoding or scaling error can therefore lead to a variant that keeps the same GPU encoder. Hardware encoding paths precede CPU MJPEG encoding paths. In Edit scene, a NAS delay, positioning error or first-frame error no longer triggers CPU decoding by itself. The player retains the requested mode and shows its error after its recovery attempt; try Play or Restart player again. Automatic CPU fallback remains possible once when a message identifies a hardware decoder failure. Manual CPU selection remains available. For frame-rate interpolation, image calculation stays on CPU, but preparation tries GPU decoding and NVIDIA NVENC or Intel QSV encoding; if GPU decoding fails, CPU decoding with the same GPU encoder is tried before switching engines. Messages distinguish CPU calculation from the encoder actually used. VLC playback chooses its decoder independently of the preparation encoder: NVIDIA creation and Intel playback can work together. Paused and navigation still frames also use CPU. Valid existing previews are reused; the new choices apply when previews are next created. Source files, montage duration and export settings are unchanged.

Edit scene: Next and Previous immediately hide the image retained by the player. The new still appears as soon as it is ready; the video surface is revealed only after the first frame at the new playback position is confirmed. This also covers two passages from the same file and rapid navigation without rebuilding the player for every scene.

720p previews — GPU priority and retries

Preparation keeps the GPU engine verified at startup and tries its variants before another GPU. After a failure, each GPU method can be attempted up to five times in total, with a short cancellable delay between attempts. An explicit driver incompatibility or unsupported command proceeds directly to the next method. A secondary engine must pass its own test before being offered; its presence in FFmpeg is insufficient. AMD AMF can also encode previews, with CPU decoding and scaling. CPU fallback remains available after the available GPU methods fail.

Preparation while switching scenes: a short 0.6-second settling period precedes a new uncached encode and preparation of other sources. Ready caches remain available without this delay. A running GPU encode may continue during rapid navigation or a return to a completed cache, avoiding unnecessary restarts. If a new uncached scene remains selected, its preparation takes priority and may interrupt the old job to release the GPU; that job restarts from the beginning with the same GPU method when resumed. GPU encodes remain serialized. CPU jobs retain suspend/resume. Closing or disabling preparation still stops or pauses jobs as before. These settings concern preview preparation; the player selects its decoder separately.

Retries appear as “Retrying NVIDIA NVENC (2/5)…”, without presenting a recovered failure as a current fault. Detailed errors remain in diagnostics. After successful creation, the status confirms the encoder used and clears the previous fallback reason. New caches store their creation encoder; valid older caches remain reusable and show “original encoder unconfirmed” if this information is missing. H.264 is a video format and cannot identify the GPU on its own.

Older caches are also identified when their video stream contains the FFmpeg encoder signature: NVENC, QSV, AMF or CPU libx264/MJPEG. Without a usable signature, the original encoder remains unconfirmed; this message does not indicate a GPU error or trigger recalculation. The status distinguishes the displayed scene’s cache from preparation of other sources in the background: the file count and other source’s percentage do not mean that the ready cache is being rebuilt.

Reopening previews with NAS media: background preparation checks the cache before probing the original video. A valid local cache supplies its duration directly, without running FFprobe on the network media again. Source identity is still checked; a missing, corrupt or duration-less cache still requires source metadata. Logs include the source, cache path, reuse time and, when necessary, metadata-reading time. Cancelled or failed preparation is recorded explicitly. These measurements distinguish reopening a cache from creating a new preview and do not guarantee identical speeds on every computer.

GPU preview size: new Edit scene caches automatically adapt their bitrate to the full video duration. NVIDIA NVENC, Intel QSV and AMD AMF use a calculated target bitrate, maximum bitrate and buffer to leave headroom below the 2 GB per-file limit. A 25% reserve covers encoding variation and container overhead; longer videos use a lower bitrate. Frames remain independent to preserve fast forward/backward navigation.

If the file still exceeds the limit, at most two retries keep the same GPU engine with a lower bitrate and maximum dimensions of 960×540, then 640×360. The first attempt remains limited to 1280×720. Actual dimensions are displayed when height is below 720 pixels. A size error alone does not switch GPUs or trigger CPU fallback; it is separate from the five attempts for a hardware failure. File-size and free-disk-space limits remain active.

These settings affect preview files only: sources, montage, audio and final exports remain unchanged. Valid existing caches are reused. Logs record duration, bitrates, size budget, maximum dimensions and size-related retries.

Apply and Save in projects with network media: only changed scenes are sent to the project. End-bound validation uses loaded durations and a media index, without looking up NAS files on the interface thread. An invalid duration prevents the whole set of edits from being committed; applying again without changes does not rebuild the timeline. This validation does not replace source availability checks when media is read.

Fluid-passage shortcuts in Edit scene: Ctrl+Shift+F recalculates the fluid passage, Ctrl+Shift+N uses the next passage and Ctrl+Shift+P the previous one. They run the same commands as the buttons, with the same locks and limits. They work from settings fields, with settings hidden or during fullscreen preview. A disabled command or an ongoing recalculation does not trigger another action. Translated tooltips show the shortcuts. Ctrl+N and Ctrl+P still switch scenes; Ctrl+Shift+N remains New project in the main window.

After deleting in Edit scene: Quit or the window close control also offers “Fit to music duration”, even if you only deleted videos without clicking Apply. One or more deletions still in effect are included alongside applied duration changes. A deletion restored with Ctrl+Z no longer counts. The proposal requires active music and at least one remaining video. Declining closes the window and keeps the deletions; accepting opens the usual timeline proposal after the editor closes, without automatically confirming the adaptation.

Speed and playback during an Edit scene session: the ×1, ×2, ×4, ×8 or ×10 choice is retained with Next and Previous. If playback was active, it resumes on the chosen scene at that speed in windowed, maximized and F11 fullscreen modes; a paused preview stays paused. The request waits for metadata and player opening, including file changes or player recreation. Pause or Stop cancels the wait; closing, an opening error or a timeout must not cause delayed playback. Media access may still create a loading interruption. Montage speed explicitly restores each scene’s own speed. A new window opens paused at montage speed. Saved scene and export speeds remain unchanged.

Edit scene: Integer speed-up (label and ×1 to ×100 selector) is in the preview speed bar, between Edit speed and Advanced options / Hide advanced options. Controls are aligned on the same row. The setting remains accessible with scene settings or advanced options hidden, including F11 fullscreen. It changes the scene speed; ×1, ×2, ×4, ×8 and ×10 retain their temporary preview-speed role.

Navigation in Edit scene: on opening and with Next or Previous, the timeline selection follows the displayed scene. The matching row is brought into view in the main list; if the visual timeline is open, the matching clip is selected. Matching uses the scene ID, including multiple scenes from one file and after deletion or restoration. The editor’s initial selection for batch operations is retained. Following the scene does not move keyboard focus or change playback/pause intent.

Edit scene: Move up and Move down are immediately to the left of Save, with matching alignment. They move the displayed scene one position in the montage using the same command as the Timeline tab. Moves take effect immediately and are recorded in timeline undo history; Apply is not required. The same scene remains displayed and selected, current fields are retained and the reader is not recreated. Next and Previous then follow the new order of scenes open in the editor. The commands remain available with settings hidden and in F11, and are disabled at montage boundaries. Moving a scene does not change its duration or speed.

Edit scene shortcuts: Ctrl+U triggers Move up and Ctrl+D triggers Move down, as in the Timeline tab. They use the same buttons, respect their boundaries and work from fields, with settings hidden and in F11 fullscreen. Tooltips show the shortcuts. Child dialogs do not forward them to the editor. Ctrl+Shift+D does not trigger Move down.

Shortcuts after Next / Previous: editor commands are reattached to current controls after each scene load and when the reader is ready. Common commands run before local field handlers to prevent interception. Focus is restored after layout without forcing another application to activate or leaving an active input field or child dialog. Callbacks from an old preview are ignored. Ctrl+1, Ctrl+2, Ctrl+4, Ctrl+8 and Ctrl+0 are keyboard keys rather than mouse buttons. They retain their temporary preview-speed role with settings hidden and in F11.

Visual Timeline: tracks and editing

In Timeline, click Open Visual Timeline. The view displays video, audio and overlay tracks. Its tabs group Media & Montage, Video, Video and Audio Tracks, Audio, Transitions and Overlays. The zoom control or mouse wheel changes the time scale; the scrollbars move through the view.

Select an item to see available actions. Move items, adjust their boundaries, manage tracks, add media, images or audio, and undo or redo. Multiple selection applies an operation to several items; check the selection and track before changing a setting.

Playback and the time cursor help inspect joins. The timeline may appear before thumbnails and waveforms arrive progressively; their temporary absence does not mean media are missing. Cached images are reused while source, position and settings match; changes may need recalculation. A rendered 720p preview provides an editing reference, not the resolution or final-file inspection precision of the export. Changes stay in the project until saved and do not replace media. Ctrl+Z undoes and Ctrl+Y redoes.

Video frame rate: open this command in Timeline or Visual timeline. Choose a target rate and mode. Automatic preserves duration for a file containing an audio stream and changes speed for a file without audio; muting a track does not alter that choice. The corresponding checkbox makes this the default for new videos. Existing projects remain unchanged until explicitly applied. Apply to selection processes selected clips, or all clips if none are selected. Clear it to configure future imports only. Review the report before confirming; Ctrl+Z restores clips, settings and linked audio.

Preserve duration keeps timing, synchronization and audio at their manual speed. Fast duplicates or drops frames and cannot guarantee perfectly smooth motion. Interpolation computes intermediate SDR frames when raising the rate; it costs processing time and may introduce distortions. Lowering the rate drops frames. Missing interpolation support or HDR sources are explicitly rejected: choose Fast or cancel.

Adapt by changing speed applies the exact target/source ratio multiplied by manual speed. Examples: 25 → 29.7 = ×1.188; 25 → 30000/1001 ≈ ×1.198801; 60 → 30 = ×0.5; 29.7 → 25 ≈ ×0.841751. Duration changes. Decimal and fractional rates are accepted: 29.7 is not 29.97, and decimal 29.97 is not exactly 30000/1001. Variable, interlaced or unqualified sources are rejected in speed mode. Presentation timestamps are checked in the background.

Keep positions leaves other clips in place and rejects overlaps. Move following clips recalculates positions while retaining gaps. Changing the target rate also recalculates clips already conformed by speed without accumulating ratios; their individual mode, method and audio choices remain intact. Anchored titles follow their clip. Subtitles and independent audio retain absolute timing and must be reviewed after a duration change.

Video frame rate display and shortcuts: lists and the review show 29.97, 29.7, 59.94 and 59.4. The 29.97 and 59.94 choices use the exact values 30000/1001 and 60000/1001 respectively. For a different strictly exact decimal, enter its fraction, for example 2997/100. Ctrl+Enter starts Review before applying; Ctrl+Shift+C cancels or closes; Ctrl+K searches commands. F11 toggles fullscreen, Ctrl+M minimizes/restores and Esc leaves fullscreen or otherwise closes the window. These shortcuts also work from the frame rate fields. Applying changes still requires the usual confirmation.

Checking an already applied frame rate adaptation again shows “No changes needed: these settings are already applied.” without another confirmation or undo step. The review lists only clips that actually change. Changes to the method, audio, export rate or new-import defaults still require confirmation, even if the final duration stays the same. Identical applications do not multiply the speed factor again.

Short thumbnail names: the opening card appears as start_card, the closing card as end_card and intermediate cards as timeline_card1, timeline_card2, etc., in clip order. These names are used in the timelines and overlay editor, including existing projects. Image files and their references are preserved.

Timeline and Audio: source comparisons use loaded metadata without resolving NAS paths on every redraw. Audio tracks and scene indicators use indexes.

First audio playback in the visual timeline: the playhead can be drawn before the initial layout finishes without a “timeline_height” error. Its height then follows the displayed tracks.

In Visual Timeline → Opening and closing thumbnails, “Automatic with local AI” is the initial mode. Click Generate automatically. StreamerAI Studio favors sharp, distinct frames, using the first half of the edit for the opening and the second half for the closing. You can also select a captured or imported image as a reference. When you generate again, the assistant uses those references or the video. The optional style guides color and light. The framing and detail come from the video frame at the project resolution. In 16:9, for example, the PNG is 1280 × 720 for HD, 1920 × 1080 for Full HD, or 3840 × 2160 for UHD. If the source has a lower resolution than the project, the file uses the requested dimensions and retains the source’s level of detail. Compare the three opening and three closing proposals before inserting them. If they are too similar, choose different frames. Your mode selection is remembered. “Automatic without AI” uses actual frames and “Automatic with AI” uses the OpenAI service with internet access and an API key.

The engines, models and five voices are available as a separate 64-bit Windows ZIP of about 13.5 GB. Open Download components or https://streamerpro.fr/updates/streamereditorpro/files/streamerai-studio.html. Extract the StreamerAI Studio folder into %LOCALAPPDATA%, with moteurs, models and voix directly inside it. Existing installations are detected there. Once installed, both features run the models on this PC. Missing components are reported.

YouTube style with local AI. In Visual Timeline → Opening and closing thumbnails, select Automatic with local AI, check YouTube style and enter a short title. The title can be left blank. Generate automatically creates three opening and three closing proposals at project resolution. Color and contrast are boosted using frames from the edit. Choose a proposal and click Edit title, text and logos. Select a layer to change its text, font, color or size. Drag it in the preview to move it. Use + Text or + Logo to add layers, or select a logo and click Replace logo. Save a variant adds the edited version to the gallery and selects it. Insert / replace then applies the selection to the timeline. The background and imported logos are saved with the project so you can edit them after reopening it.

The Opening and closing thumbnails window displays its controls while the gallery loads in the background. Cached images are reused and missing images are restored from the project. You can close the window during loading.

In the Opening and closing thumbnails assistant, select Automatic with local AI, then check YouTube style and Postcard. The title starts with the project name. You can enter shared details once, for example “Imperia | Liguria | Sea, village and dolce vita”, or leave the field blank. Each automatically captured proposal uses visible text at its own frame or a descriptive video filename. A selected image without verifiable context or a shot with no descriptive clue gets a general caption. Shared details, the title and captions remain individually editable under Edit title, text and logos. The assistant produces three opening and three closing proposals at project resolution.

In Postcard layout, Automatic · six styles uses a different template for each proposal. Automatic style mix combines one template’s layout with another’s colors, banners and graphic accents. You can also select a specific template, including Classic postcard. Two landscapes and Expedition combine two distinct real frames when available. Captions stay with their own images. Text and arrows are editable in the thumbnail editor.

The selected thumbnail appears in a large preview on the right of the gallery in the Start, End and Timeline tabs. In Edit title, text and logos, Width (%) ranges from 2 to 1,000%. Above 100%, the part outside the frame is cropped in both the preview and the saved variant. Move the layer to choose which part is visible.

In the thumbnail editor, Smile, Glasses, Heart, Star, Arrow and Shocked add 3D stickers with transparent backgrounds. You can change their color, position, size and rotation.

In Edit title, text and logos and in Overlays, open 3D Logos to choose from the 30 sheet logos and the Subscribe button. In Overlays, confirm the logo properties to add it to the edit. The thumbnail preview is centered in the editor.

The 3D Flags tab contains all 30 flags from the sheet with their original colors and transparency. Add them to thumbnails or overlays from the same library.

The Streaming category contains 30 badges. Choose 4K Ultra HD, 24/7 Live, Alert bell, Drone 1080p, Drone 4K/UHD or Like in one of five color series.

In 3D Logos, the Logo theme list opens the categories. The 11 previous sheets now use the supplied large-format files, each 3,840 pixels wide. Twenty new themes add 600 logos. The library contains 931 assets, including 811 logos, 60 flags and 60 arrows. Each logo’s dimensions depend on its crop within the sheet. New artwork loads by theme, and existing identifiers are preserved for saved projects. The same library is available in Edit title, text and logos and in Overlays.

In Visual timeline, help text uses the available frame width and wraps with the window size. The tools panel automatically fits the active tab: Media and editing, Video and audio tracks, Video, Audio, Overlays or Transitions. The timeline moves up when a tab needs less space. Layout also follows width and language changes. On small screens, tools remain scrollable and tracks retain a minimum height. You can still move the divider manually.

Close visual timeline is at the bottom right in the bar shared by all six tabs. It remains available when switching tabs or scrolling the tools. In Media and editing, Save takes its former position and Synchronize cameras with music follows immediately to its right. In the main window’s Timeline tab, Local AI video generator, Video frame rate and Open visual timeline are aligned in one row.

Video, colour and transitions

The Video tab in Visual Timeline offers Contrast, Saturation, Brightness, Sharpness, HDR Effect and colour enhancement. Enable the settings to apply and use a slider or numeric field. Before Apply to Selection, check the boxes and targeted items. Automatic enhancement and reset commands are available.

The creative HDR effect adjusts the picture’s appearance from 0 to 100%. It is separate from HDR10 export, which needs a compatible profile, components and player. Available HDR10 export does not prove native HDR preview: the current profile retains an SDR preview and does not qualify physical HDR display. Check strong corrections on a short sample and HDR10 output on suitable equipment.

In Transitions, choose a type and apply it to the targeted neighbouring scenes. Fade-in and fade-out handles set duration; moving them toward the edge shortens the fade. Check sound separately: a video fade does not guarantee an audio fade.

Audio: tracks, audition and effects

The Audio tab lists music and tracks linked to scenes. Select a row to show its waveform and settings. Build the waveform if missing. Set gain in dB, enable or disable the track, then click Apply. Undo and Redo reverse changes.

Transport controls play, stop and seek; audition the mix or jump to the linked clip. Normalize adjusts gain to bring the strongest sample peak to 100%. Peak normalization guarantees neither matching perceived loudness across files nor a LUFS target; loudness analysis and its dedicated normalization are separate tools. Effects open the 10-band graphic equalizer, Voice Removal/Karaoke, audio tools, restoration and creative processing. Audition before applying; Export WAV Mix creates a separate audio file.

Settings are saved with the project and used by video export. Disabling a track mutes it in the mix without deleting its media from disk.

Frame rate and audio: Preserve duration applies no cadence-related audio acceleration. If you manually choose speed mode for a file with sound, linked audio follows the new duration while preserving pitch; its rhythm still changes. You may mute it for this conformation. Returning to Preserve duration restores manual speed, volume and the original enabled/muted state. Music and independent audio are not automatically stretched.

Saved waveforms, their validation and audio metadata are loaded in the background; valid waveforms are reused without restarting FFmpeg. Automatic waveform persistence into the SEP also runs in the background and skips the write if a newer save exists.

Timeline GPU preview — audio startup: the audio mix is prepared directly, without building video filters or opening muted videos to produce the music. This avoids repeated, lengthy NAS media checks before the first audio data arrives. Volume, effects, fades and mixing settings still apply. If audio arrives after a silent playback interval, outdated samples are discarded before sound rejoins the current video position. Any remaining delay depends on access to the audio sources and their processing.

In Audio → Local AI narration, choose French (France), British English, Italian, Spanish (Spain), or German. Paste the script, click Generate and add and choose where to keep the WAV. A dedicated track is added at the selected audio source’s cursor, or at the start if no source is selected. Ctrl+Z undoes the insertion. Keep the WAV with the other project media.

The engines, models and five voices are available as a separate 64-bit Windows ZIP of about 13.5 GB. Open Download components or https://streamerpro.fr/updates/streamereditorpro/files/streamerai-studio.html. Extract the StreamerAI Studio folder into %LOCALAPPDATA%, with moteurs, models and voix directly inside it. Existing installations are detected there. Once installed, both features run the models on this PC. Missing components are reported.

Voice reduction and AI separation

EQ attenuates frequencies but cannot cleanly separate vocals: voices and instruments share bands. Mid/Side centre removal reduces the centre of a stereo mix; it may also attenuate centred instruments and leave off-centre or reverberant vocals. Mono cannot provide this stereo separation, so processing falls back to EQ. Vocal analysis helps choose a mode without guaranteeing a clean instrumental.

Audition Original and Processed; adjust intensity, low/high frequencies and bass/high preservation. The treatment is previewed and committed only when applied. Normalization and a limiter help control peaks. Vocal residue or attenuated instruments may remain.

Demucs/HTDemucs neural separation is an optional local module with PyTorch: download it or use a local archive, repair it or remove it through the supplied controls. Allow several GB for the archive and installation. It separates Vocals, Drums, Bass and Other, then prepares Instrumental/Acapella; processing runs locally without uploading media to a server. CUDA needs a compatible NVIDIA GPU and components; the worker also supports CPU processing. Its version number may differ from the application’s: module compatibility matters. Check or repair a rejected archive. Missing or invalid stems must be regenerated before the requested export; the original is not silently substituted. See Media, cache and recovery for preservation. Editing and standard audio tools remain usable without the module; an online AI thumbnail service is a separate workflow.

Text, logos and overlays

Text & Logos lists elements over the montage. Add text, an emoji or a logo; double-click an item or choose Edit to adjust content, appearance and position. Delete only the selected item. Projects reference logo image files, so keep them available or relink them.

Placement controls set position and size. Grid snapping aligns edges and centres: move slowly near a line to snap, or disable it for free placement. Check readability over bright and dark areas.

In Visual Timeline, Overlays organizes elements in time and on tracks. A global overlay can cover the montage; an item anchored to a scene follows it. Save the project and review the export.

SRT subtitles

SRT Subtitles creates a file from an MP3 using the included local Whisper engine. Choose audio, output path and spoken language or Automatic. Click Create SRT; progress appears and transcription can be cancelled. The original MP3 is unchanged. Open the editor to correct text and timing.

For bilingual SRT, supply a TXT already containing lyrics in both languages, then choose the SRT destination, both languages and the sung language. Use supported language blocks such as [EN], [IT] or [EN/IT], or the expected separators such as a vertical bar. This workflow aligns supplied lyrics; selecting two languages does not itself start automatic translation. Pay particular attention to singing, overlapping voices and hard-to-hear passages.

Automatic transcription is a draft to review: words, names and lyrics can be misheard. Save separately and check synchronization at several points.

Shorts Studio and short-form projects

Shorts Studio prepares short videos independently of the main montage. Select sources and passages, choose a vertical format, then compose cards with available visuals, text, logos and editing tools. Review framing and placement in the preview.

Shorts Studio has its own project state. Check safe margins and title readability on a phone screen; platform controls may cover the edges. Use the preview and available thumbnail choices to select a representative frame.

Start rendering deliberately and wait for completion before closing or changing sources. A Short does not replace the main montage. If rendering fails, read the status and check free disk space.

In Shorts Studio → Thumbnails, “With local AI” adjusts the color and light of a video background for the active card. The file uses the Short’s portrait resolution, such as 1080 × 1920. “Without AI” uses captured frames and “With OpenAI” uses the online service. Three proposals are generated for the active card.

Preview and video export

In Export, choose a profile or Custom: resolution, frame rate, MP4 codec and bitrate. H.265 and HEVC name the same codec; H.264 is often more compatible. Adapt bitrate to motion and quality needs. Decoding, filters, composition and encoding are separate stages: a GPU encoder does not accelerate the whole pipeline, and corrections or transitions may use the CPU. NVIDIA NVENC/CUDA and Intel QSV depend on available probes and components. The AMD Radeon/AMF support described here covers H.264/HEVC SDR export; it does not imply general support for AMF HDR, AV1, proxies or Shorts, or qualification of every Radeon. Retest the engine with the hardware tools after driver or configuration changes.

Choose an output file. Create 720p Preview prepares a reference, not the final export. Preflight checks detectable issues; the cache manager examines temporary data. Export Video starts rendering: follow percentage, status and messages. Cancel Render stops the job.

Batch Export processes multiple projects or items through its workflow. Check destination and existing files before starting. Sources are not replaced. Open the result and review picture, sound, any subtitles and duration.

Export frame rate is independent of timeline rate. Follow timeline frame rate uses its exact value; clear this option to choose another value. A different export rate resamples frames without applying the speed ratio again. For a 25 fps montage with sound exported at 29.97: open Video frame rate, choose 30000/1001 for the timeline, Preserve duration (or Automatic for files with audio), apply to clips, then export following the timeline. Audio retains its duration. Frame boundaries are rounded on the global montage grid rather than adding one frame per clip; final audio is fitted to that global duration.

Render cancellation: the progress window closes as soon as the task confirms it has stopped, and the status shows “Render cancelled”. It no longer remains on “Cancelling…” after processing ends. The elapsed time shown covers the entire render. Valid completed blocks remain available to resume an identical export.

Media, cache and recovery

The .sep references media without embedding them. After moving or renaming files, use Tools → Relocate media and select the new location. Matching filenames alone do not identify the correct file; check ambiguous matches before confirming. Mount NAS shares before opening or exporting. When transferring a project, also keep its sources and external files, including logos, subtitles and AI results.

Caches serve different purposes. Thumbnails, waveforms and previews can be rebuilt; AI stems are separated results needed by some mixes. Move the .sep together with its associated audio-cache folder, preserving their relative layout, then check stems before exporting. If missing, separation must be rerun with the source and a compatible module. Prefer the cache manager to blanket deletion; do not purge data used by a task, player, Undo/Redo history or clipboard.

If something goes wrong, save first and use Tools → Diagnostics. Review the report before sharing; it reduces personal data and secrets. Compare recovery data with the last saved version before proceeding.

Smooth previews beside the project: after saving My montage.sep, 720p previews are kept in My montage.previews in the same directory. When Edit scene is reopened, a valid preview is reused automatically without encoding again. Compatible previews still present in the local cache are copied into this folder in the background; completed previews made before the first save are copied too. Incomplete files are not reused. A changed source, different interpolation settings or an unreadable preview may require preparation again. Cleanup on exit applies only to temporary local previews, even when its checkbox is selected; it does not delete the project folder. To move a project, copy the .sep and its .previews folder together, keeping their names, and keep sources accessible at the same paths to reuse these previews. If you rename the project, rename the .previews folder to match its base name. The folder follows the project location: save the project on the SSD to keep previews there when originals are on a NAS. An unsaved project still uses the temporary local cache. Preparation and copying require write permissions and available space. You may manually delete the .previews folder while the application is closed to free space; previews will then be recreated as needed. Original videos and the final render are unchanged.

Contextual help from application windows

These passages reproduce the explanatory text shown in the application. They are grouped by window and use the same translations as the interface.

Automatic montage

Add as many folders as needed: camera only, drone only, or alternating camera → drone when both are present. Quality passages are selected in each category.
Drone: 5 s removed from each end, long smooth sequences and automatic integer speed-up to ×100.

During analysis and montage creation, the highest peak of each source used is adjusted to 100%, just like the Normalize button in the Audio window. Gains are saved in the project; original files remain unchanged.

Source video filter: only videos within this duration range are analyzed and added to the edit. The maximum slider goes from 30 s to 24 h, then ∞ at the final stop. The scene durations above control the selected clips.

Target duration: desired edit length in seconds (60 = 1 minute); 0 uses the music duration or, without music, the combined duration of the source videos, without exceeding the music when present.

Each limit applies separately to every added folder: for example, 2 with three camera folders allows up to 2 scenes per folder, 6 in total. The best passages from each folder are preferred. Sliders run from 1 to 999 then ∞; you can also type any positive integer or ∞. Default: ∞. Limits may shorten the edit.

Clip selection: farther left accepts more footage; farther right applies stricter sharpness, stability and exposure criteria. This does not change export resolution or quality.
With two folders, each must contain a clip that reaches the threshold; with one folder, the best available clips are used as fallback. This setting applies when creating the edit and does not modify the existing edit.

Tolerant preselection: the stability score is an estimate, not a guarantee of a perfectly stable shot. Left accepts more passages; right raises the threshold. The strict precision profile and its confidence are not qualified yet. This setting affects montage creation, without changing export quality.

By default, StreamerAI Studio creates one opening and one closing thumbnail offline. Without AI uses video frames. Uncheck the active option to create the edit without thumbnails. When music is active, the edit is adjusted to keep its duration.

Local smart analysis: incremental cache, similar-shot, face, landscape, architecture and probable active-audio detection. No video is sent online.

Visual timeline

Add files, then drag them from “Files to place” onto the timeline, or drop them from File Explorer. Ctrl+Z: undo.

Drag a file onto a track to add it; double-click to preview it without removing it.

Click to select, then drag the body of a block to a video or audio track. Ctrl+Z: undo.

Check only the settings to apply to the selection; every scene keeps its other values.

Settings are applied automatically to selected scenes. Displayed values: last active scene.
Reset: contrast, saturation, brightness, sharpness, HDR effect and auto enhancement for the selection.
Colors: 0 = neutral, 100 = recommended automatic correction (contrast, saturation, brightness).
HDR effect: 0 = disabled, 100 = maximum. Shadows are lifted and highlights softened. SDR preview.

Markers: D trim · V speed · I reverse · A auto enhancement · C contrast · L brightness
S saturation · N sharpness · H HDR effect · F fades. Changes apply only to the scene; click for details.

Video fades: drag the turquoise (fade-in) and orange (fade-out) handles in each block.
Drag inward to lengthen; drag to the edge to remove. Fades to black; audio is unchanged.

Edit duration preserved · select two adjacent items or multiple joins · ×1 audio/overlays: crossfade · streamed CPU composition.

The priority track reduces the other track only beneath its own clips. 100% completely replaces it in those ranges.

Edit scene

Green band: fluid zone · Dark red band: unstable zone. Green: start · Orange: end · Red: position. Click or drag on the bar to navigate. Right-click: delete a marker · Double-click the bar: add a missing marker. Double-click the video: fullscreen / back · Esc: leave fullscreen.

Audio

One line per point: HH:MM:SS.mmm = value. Project time; linear interpolation. An empty envelope uses the fixed setting. Apply commits all points together.

Mix analysis before normalization: LUFS-I, True Peak, LRA, peak, RMS and crest factor. Spectrogram uses the processed clip selection. Noise profile uses selected raw audio. Results are tied to a graph and source revision.

Analyze the whole clip before mix effects, including edits and transforms. The grid contains BPM, beats, estimated confidence and phrase changes. Correct BPM/phase or name sections as needed. Using it in montage requires explicit activation; activation alone changes no scene.

SRT subtitles

Transcription uses Whisper locally. The original MP3 file remains unchanged.

Both TXT files must contain the same passages, with one matching translation per line.

One TXT file: French then Italian on two lines, separated by |, or [FR] and [IT] sections.

One TXT file: [IT], [FR] and [IT/FR] sections, or translations separated by |.

One TXT file: sections with language codes such as [FR], [IT] or [FR/IT], or translations separated by |.

Automatic creation during analysis: give the TXT the same name as the MP3, or leave it as the folder's only TXT file.

Shorts Studio

Shots of 2 to 3 s, fixed centered framing. Cuts on detected beats when possible; no shot under 2 s. Music remains continuous.

Drag the yellow lines to adjust the bands. Draw a rectangle elsewhere to add an area to process.

Band removal and declared areas are processed before cropping, including on cards. Moving or undeclared logos may remain: check several points in time. There is no universal text/logo detection.

Hide: covers the area.
Interpolate: reconstructs it locally, with possible artifacts.

Areas are fixed and active on every shot.

Drag: move • Square: resize
Shift: free transform

Edit the cards in the dedicated movable, resizable window.

Logo: transparent PNG recommended. Stickers are built in.
The displayed design will be used for export. Added text and elements remain editable.

Tools and additional windows

Maximum GPU always prioritizes a validated engine; Strict GPU forbids any CPU fallback.

The active mode is shown above. SDR transitions: GPU has priority in Auto mode; CPU fallback is explained; engine changes require confirmation.

Double-click: fullscreen · Esc: back · arrows: ±5 s

Automatic tests available and working hardware encoders, including NVIDIA, Intel, and AMD AMF. CPU encoding is used if needed.

This is a preference with automatic fallback. Existing previews are kept. An encoder explicitly selected for export takes precedence.

To choose a playback GPU, select StreamerEditorPro in Windows graphics settings, then restart the application.

Compare durations and scene counts. Current montage is kept before each restoration.

Add projects individually or in a batch. The order below determines their position after the current edit; use Move up and Move down to change it. Clips use the corresponding video and audio tracks; missing tracks are created. Media files are checked before import, which can be undone in one step.

A name alone is never enough to replace a video automatically. Check each proposal and explicitly link it, or leave the media missing.

Automatically encrypted on Windows; never stored in the project.

With audio: clips are shortened if needed to fit the thumbnails within its duration.
Clear Insert in a tab to keep only the opening or closing thumbnail.

Choose an image below, then a cut after a clip. Add as many thumbnails as you like; later clips move without being trimmed.

Shared video and thumbnail styles. In Automatic with local AI, the selector provides the same 40 looks: 31 photo styles that preserve the scene and 9 artistic AI styles that may reinterpret objects and geometry. Follow the last style selected in the video generator is enabled by default. The last video choice is remembered by language-independent ID. If no video style has been saved, Natural cinema is used, matching the video generator. Selecting another thumbnail style disables following; enabling it again restores following. This choice is saved with the project and also applies to local bookends created during analysis and automatic montage.

Before/After shows a montage frame at the chosen time with the selected look. To use it as a reference, capture it for the tab. A selected capture or imported image becomes that tab’s reference; previously generated images are not reused as sources. Without an explicit reference, generation selects distinct montage captures and produces three opening and three closing proposals. The preview remains indicative for proposals using other frames. It updates in the background when position, style, reference or instruction changes; old work is cancelled and stale results ignored. Generation waits for the preview engine to be released. Photo styles do not reconstruct objects; the extra instruction applies to AI styles.

Final files are checked at exact project dimensions: 1280 × 720 HD, 1920 × 1080 Full HD, 3840 × 2160 UHD, or the project’s portrait/custom size. A smaller preview does not reduce final file resolution. AI synthesis remains bounded to 512 pixels on the long side before fitting project dimensions; it is not native UHD. Text, logos and YouTube/Postcard layouts are added after background styling and remain editable. No model or cloud request is added.

Installation assistant: open Tools → Installation assistant, Updates → Installation assistant, or Download components in a local AI window. The same Windows assistant is available on streamerpro.fr. Choose the latest tested release or the stable reference of 8 November 2026, then Windows installation or Portable. Portable extraction uses a separate folder for each version and build. Shared AI image/video engines, voices in all five languages and local AI text are optional and separate from the application. Full offline archives remain available. Photo styles need no AI model. Progress uses actual bytes for each stage, speed and estimated time remaining. Pause or close preserves partial files; reopen, select the same items and choose Resume/Download and prepare. Interrupted connections resume in the same way. The assistant verifies full hashes before use, reuses identical installed components and restores previous files if a component installation fails. Insufficient space blocks the operation. Starting Windows installation asks for confirmation, backs up settings and asks to save the open project. Stable rollback reinstalls the reference application; it does not convert newer projects or delete media. Displayed size is a maximum before reusable components are detected.

Private downloads: the site, assistant, catalog, components offered by the assistant, latest release and stable release require a username and password over HTTPS. An address alone grants no access. StreamerEditorPro download links are removed from public pages. In the assistant, enter credentials under Private access and click Sign in; the catalog loads after authentication. The password is not written to preferences or logs; it remains in memory for the session only. The browser and assistant each require sign-in. Stable rollback and resumed downloads use the same private access. This protection cannot revoke copies already downloaded.

Local and online AI thumbnails: the reference is decoded directly from the selected video image, without using the composed timeline render. Timeline text, logos, emojis, transitions, fades, overlapping tracks and image adjustments are excluded. Trimming, speed and playback direction determine source time; a selected scene remains the source even if another track covers it. New captures retain scene and source time. Selected legacy captures are recaptured from the video; previous AI proposals are not references. Card titles, text and logos intentionally added in the thumbnail editor remain separate layers; timeline overlays are not automatically copied into Postcard layouts. Before preview shows this clean source. Online preview makes no paid request: sending waits for Generate automatically. Local and online outputs use exact project dimensions, including UHD and portrait.

Audit of all 40 renderings: 31 photographic looks and 9 source-guided artistic effects. Photo looks use color, contrast and, where appropriate, grain, bloom or haze; they do not create mountains, deserts or new objects. Relevant palette names are clarified. The nine artistic effects combine a material guide preserving original shapes with textures from the existing local AI model, using a bounded contribution to prevent subject replacement. Comic and anime contours are lighter, pencil returns to light paper, and artificial regular painting textures are removed. Clay relief uses 12 distinct frames per second, encoded at project frame rate. Pastel tones remain intentional in soft looks only. No additional model or larger offline pack. Still preview is indicative; motion, occlusion and scaling may differ. UHD output follows project dimensions but does not mean native UHD model inference. Keyboard shortcuts and commands now uses the high-resolution StreamerEditorPro.ico icon.

Stable reference changed at the user’s request: the tested release of 8 November 2026 becomes stable. The 28 October release is removed from downloads and deleted after the new release is verified. The private catalog identifies the stable build, tests and hashes; a future release may be newer without changing this reference.

Updates: the window now uses the authenticated private catalog shared with the assistant. Enter credentials and Check; it never calls the removed public manifest. The password stays in memory only. Startup checking is deferred until a private session is open. One button offers the previous reference release, identified by version and build; the legacy version list and manual lot picker are removed from this window. Build 12 of 8 November remains the rollback reference for the next corrective release. Local and online AI thumbnails: Generate automatically creates nine proposals, three each in Beginning, End and Timeline. The first in each tab uses the chosen manual reference; the other two use different images randomly drawn across the entire montage. Sources exclude timeline overlays and results use project dimensions. Each tab has distinct proposals marked Manual selection and Random selection. An overly uniform timeline gives an explicit message before any paid request. Online generation uses nine images with one reference per image, no automatic paid retries and no generation for a still preview.

Video duration: the 4-second cap is removed. Entire scene is selected by default; enter a positive number of seconds, including decimals, for a custom duration. It is clamped to the available section after the start position, accounting for speed and reverse playback. Photo looks are streamed; artistic effects render in short bounded-memory blocks with the same seed, then assemble at project frame rate. Blocks limit memory, not final duration. Reverse video is also segmented when its buffer would be too large. Progress shows the current block and measured stage completion. Long renders take time and need temporary/output disk space. Cancel stops processing and removes temporary pieces; insertion into the timeline stays explicit.

Build 14 — Updates: all six buttons share one row. The window opens wide enough for their labels; a horizontal scrollbar keeps them accessible if it is narrowed. Escape closes the window. After successful sign-in, Windows DPAPI encrypts username and password for the current Windows account, outside the installation folder and projects. Both the update window and assistant restore them after restarting or reinstalling StreamerEditorPro under that account. An encrypted configuration backup can recover a missing file. This does not transfer secrets to another account or a fresh Windows installation. Closing the timeline hides it immediately; readers and decoders shut down in the background before their surfaces are destroyed. Display settings in standard project files save without decoding or re-encoding embedded images, off the UI thread, coalescing the latest values and protecting concurrent explicit saves. Undo history transfers without a full deep copy; Undo and Redo remain available. Resources remain protected during cleanup. Build 12 stays the stable rollback reference; build 14 is the new corrective release.

Build 15 — New videos from the local generator use the source filename followed by _AI_ and the style name in the language selected when rendering starts. Track and camera labels remain visible in the timeline. The result is always MP4; the original MP4 extension case is preserved. Other source formats produce .mp4. Existing variants are retained: subsequent versions receive (2), (3), etc. Windows-invalid characters are replaced and overly long names are shortened. The metadata file uses the same name. This applies to photographic presets, artistic AI styles and videos assembled in blocks. Existing files are not renamed. Local compilation only, without a setup, portable archive or online publication.

Build 17 — Public installation and retained licence. The website, assistant 1.4 and update window no longer request a username or password to download StreamerEditorPro or its AI components. Resumable downloads and SHA-256 verification remain. The server offers only the new application release with DEMO mode and activation; legacy unlicensed builds 13 and 14 and their publication copies are removed. At launch, this same release is the stable reference, so no older rollback is offered. All AI components remain available. Download access is separate from product activation: a valid product key is required for full features. Existing licences migrate automatically to Windows-encrypted storage without a new activation. Primary and recovery copies stay in the Windows user profile outside the program folder and survive application reinstall or uninstall/reinstall. A missing or unreadable primary can recover from a signed copy for the same machine. Revocation updates both copies. Signatures, expiry and the 30-day offline limit remain checked. This applies to the same Windows account and profile; it does not guarantee transfer after reinstalling Windows or changing computers. Do not manually delete licence data.

Guided workflow: prepare your first montage

1. Save the .sep project early in an accessible location separate from the original media. Keep an independent copy of media and project; the local auto copy does not replace it. See Media, cache and recovery for moving a project.

2. Add the camera folders and, if needed, drone folders. Check the list and group order: when several categories are present, this order controls how sources alternate. Include subfolders only when that matches your folder structure.

3. Choose the allowed source-file durations, target montage length, scene limits per folder and selection strictness. A target duration of 0 lets the application estimate the montage from the media and, when present, the music.

4. Optionally add music and enable its normalization. Choose the profile, automatic enhancement and HDR effect for the look you want. Creation settings do not alter the original videos.

5. Start analysis and montage creation, then read the report. Open the Timeline table to check order, duration and selected passages before making manual adjustments.

Guided workflow: refine a scene and the timeline

1. In the Timeline table, find the scene and open Edit. Check its source filename and scene number so you know you are changing the intended item.

2. Position playback near the useful action. Adjust source start, duration and speed, and watch the final duration after acceleration. Lock one edge if you want to keep its cut point while adjusting the other.

3. Use the markers and smooth/unstable zones to choose a passage that plays well. For fast motion, also review a few seconds at normal speed. Save or Apply to keep your settings; Cancel discards uncommitted changes to that scene.

4. Then open the Visual Timeline to check joins across the montage. Zoom with the mouse wheel, move the scrollbar to the desired area, and select a clip before moving it or changing its edges.

5. Check the affected tracks before each operation. An action on the selection should touch only the intended items. Press Ctrl+Z immediately if the result is unexpected, then save after checking.

Guided workflow: balance and check audio

1. Open the Audio tab and select the track or clip you want to hear. If its waveform is missing, ask the application to generate it; the display helps locate silences and changes but does not replace listening.

2. Listen to the original, then use Normalize to adjust peaks. For a loudness target, use the dedicated tool described under Audio. Compare several passages by ear; a peak at 100% does not guarantee uniform perceived loudness.

3. Adjust gain in dB and effects in small steps. Compare regularly with the original and watch peaks. Strong equalization or vocal reduction can damage instruments and voice clarity.

4. In the Timeline track-priority controls, choose the priority track and the track to attenuate; A1 and A2 are only examples. Only audible priority clips trigger attenuation: disabled clips, zero-volume clips and clips excluded by Mute/Solo do not. The slider acts only during their intervals; at 100%, the other track becomes silent over those portions, with short softened edges. Outside them, its level stays unchanged.

5. Listen to the complete mix before export, especially joins, clip starts and ends, and places where tracks overlap. Save, then check the audio in the exported file too.

Guided workflow: titles, logos and subtitles

1. In Texts and logos, add the item and open its settings. Enter the text, choose its appearance and place it over the picture. For a logo, keep the original file available to the project.

2. Check readability over several frames, including bright and dark areas. Use grid snapping to align edges or centers; turn it off if it gets in the way of free placement. In the Timeline, check whether the overlay spans the whole project or only one scene.

3. For an SRT, choose the spoken language or Automatic and start local transcription. Review names, numbers and lyrics, then correct text and timings in the editor. Transcription is a draft to review, not automatic approval.

4. For a bilingual file, prepare both text versions in the TXT as described under SRT Subtitles. Check language codes and separators, then review the result at the beginning, middle and end, especially for singing or overlapping voices.

5. Export a short check and verify synchronization, position, contrast and display duration before starting the final render.

Guided workflow: prepare a Short

1. Open Shorts Studio and select the media and passages for the short format. A Short is prepared separately from the main montage; its changes do not replace the project scenes.

2. Choose the output format and check the crop in the preview. Keep the subject inside a safe area because platform controls and captions may cover the edges.

3. Add cards, text or logos if needed. Move and resize items with their handles, then check readability on a narrow screen. For a region to hide or reconstruct, inspect several frames: moving objects may leave a fixed area.

4. Prepare a representative thumbnail and check the start and end of the Short. If music is included, check its duration and joins.

5. Start rendering once the crop and text are ready. Wait for completion, read the result message and open the output to check orientation, duration and audio.

Guided workflow: protect and verify an export

1. Save the project and confirm that every source is available. For a project on a NAS, make sure the share is mounted and the files can be read.

2. In Export, choose a profile or Custom mode, then check resolution, frame rate, codec, bitrate and output path. H.264 is widely compatible; H.265 can reduce file size at similar quality but requires a compatible player.

3. Run preflight and address warnings before rendering. A 720p preview is for checking the montage, not the final file. Confirm available disk space and make sure the destination does not contain a file you need to keep.

4. During export, watch progress and messages. If you cancel, check for partial files before restarting. Do not delete a cache while a task is using it.

5. Open the final file and check duration, picture, sound, subtitles and synchronization. If expecting Instrumental or Acapella, listen to the actual content and check stems as described under Vocal reduction and AI separation. After an unexpected close, inspect recovery before replacing your usual saved project. Keep an independent copy of project and media as described under Create, open and save.

All keyboard shortcuts, by window

Shortcuts depend on the active window and available command; the same combination can perform different actions. Button shortcuts require an available, enabled button. Fields generally retain their editing commands: click in the workspace to act on the montage. Exception in Edit scene: unmodified Space controls Play/Pause and unmodified Enter controls Stop, even from a field. Letter keys remain identical in all five languages; Ctrl and Shift refer to Control and Shift.

Project, help and command search

• F1 — Open the manual from the main window.

• Ctrl+Shift+S — Save and Ctrl+S save to the active file. A new project prompts for a file on its first save. Save As and Ctrl+Shift+S open the name and folder chooser with the current project values. The selected file becomes active after a successful save; cancel keeps the current path.

• Ctrl+S — Save the project, including from previews, Audio and Shorts Studio cards.

• Ctrl+K — Search the window’s available button commands; Enter runs the command and Esc closes the search.

• Ctrl+Shift+N — New project, when the New button is available.

• Ctrl+O — Open a project from the main window.

• Ctrl+Shift+O — Open a batch from the main window.

• Ctrl+R — In Automatic montage: analyze and create the montage.

• Ctrl+T — Open the Visual Timeline using its button in the main window.

• Ctrl+Enter — In windows with an Apply button: run that command, for example for properties or subtitles.

• Ctrl+Shift+C — When a Cancel button is enabled: cancel its command or processing, including analysis, rendering or transcription.

• Ctrl+Q — In a window with an available Quit button: run that button’s command.

• Ctrl+M — In progress windows with a Minimize button: minimize the window. Other Ctrl+M uses are detailed below.

Main window: Timeline tab

• Ctrl+A — Select all scenes in the list.

• Ctrl+E — Open Edit scene for the selection.

• Ctrl+U / Ctrl+D — Move selected scenes up / down in the montage order.

• Ctrl+Shift+D — Duplicate selected scenes.

• Ctrl+X / Ctrl+C / Ctrl+V — Cut / copy / paste scenes.

• Ctrl+Z / Ctrl+Y — Undo / redo a montage edit.

• Del — Delete selected scenes outside a text field.

Visual Timeline: selection and editing

• Ctrl+A — Select video sequences.

• Ctrl+B — Select all montage elements.

• Esc — Deselect elements; in fullscreen preview, return to the previous view first.

• ← / → / ↑ / ↓ — On the canvas: move between neighboring blocks and add them to the selection.

• Ctrl+E — Edit the selection.

• Ctrl+X / Ctrl+C / Ctrl+V — Cut / copy / paste selected elements.

• Ctrl+Z / Ctrl+Y — Undo / redo a timeline edit.

• Del — Delete the selection. In Files to place, only remove files from the import list.

• Ctrl+R — Reverse the selected video.

• Ctrl+M — Enable / mute selected audio elements when the command is available.

Visual Timeline: import, titles and output

• Ctrl+Shift+V — Add videos.

• Ctrl+Shift+A — Add audio files.

• Ctrl+Shift+I — Add images.

• Ctrl+I — Import saved projects.

• Ctrl+T — Add a track from the Visual Timeline.

• Ctrl+Shift+M — Fit the montage to the music duration.

• Ctrl+G — Open the Text and logos visual editor.

• Ctrl+Shift+T — Split the selected overlay at the cursor.

• Ctrl+L — Show the preview when its button is available.

• Ctrl+Shift+E — Export the video when the corresponding button is available.

Edit scene: display and playback

• Ctrl+U / Ctrl+D — Move the displayed scene up / down in Edit scene, including from fields and in F11; respect disabled buttons.

• Space / Enter — Play or pause / stop the preview. Numpad Enter also stops playback.

• Home / End — Go to the start / end of the current passage when focus is outside an input or navigation control.

• Ctrl+R — Show / hide scene settings.

• Ctrl+Shift+O — Show / hide advanced options.

• F11 — Switch between video-only fullscreen and settings.

• Esc — Leave fullscreen; outside fullscreen, request closing the scene editor.

• Ctrl+1 / Ctrl+2 / Ctrl+4 / Ctrl+8 / Ctrl+0 — Preview speed ×1 / ×2 / ×4 / ×8 / ×10 without changing montage speed. Use the keyboard’s top-row digits.

• Ctrl+O — Return to the montage preview speed.

• Ctrl+M — Minimize the window; on Windows, restore the minimized window if the shortcut could be reserved.

Edit scene: editing and navigation

• Ctrl+Shift+F — Recalculate the fluid passage.

• Ctrl+Shift+N — Use the next fluid passage in the scene.

• Ctrl+Shift+P — Use the previous fluid passage in the scene.

• Ctrl+P / Ctrl+N — Previous / next scene, when available.

• Ctrl+Enter — Apply settings without closing the window.

• Ctrl+Shift+C — Cancel the current scene using the Cancel command.

• Ctrl+Q — Quit editing all remaining scenes; pending changes may require a response.

• Ctrl+Shift+R — Reverse the scene video.

• Del — Delete the current video; when the marker bar has focus, delete its selected marker instead.

• Ctrl+Z — Restore a deleted scene.

Audio: playback, selection and editing

• Space / Enter — Play or pause / stop. Also available in audio tools connected to transport, outside text fields.

• Home / End — Go to the start / end of the selected source when focus permits.

• ← / → — Seek backward / forward by 5 seconds in the selected source.

• Shift+← / Shift+→ — Adjust the end of the selection left / right by 0.01 seconds.

• M — Add a marker at the audio cursor.

• Ctrl+A — Select all audio in the active source.

• Ctrl+C / Ctrl+X / Ctrl+V — Copy / cut / paste at the cursor. Cutting leaves a gap without shifting the video.

• Del — Delete the audio selection, leaving a gap.

• Ctrl+Shift+D — Duplicate the audio selection.

• Ctrl+Z / Ctrl+Y — Undo / redo an audio operation; also in the mixer, restoration and rhythm tools.

• Ctrl+Enter — Apply entered audio settings to the selected source.

• Ctrl+P / Ctrl+N — Select the previous / next audio source.

• Ctrl+Q — Stop playback and return to the Timeline tab.

• Ctrl+Shift+C — Discard unapplied values and return to Timeline; already applied processing remains undoable with Ctrl+Z.

• F11 / Esc — Enter audio-only view / return to settings; outside fullscreen, Esc leaves the audio workspace.

• Ctrl+M — Minimize the main window; restore it on Windows if the shortcut could be reserved.

Overlays, text, logos and Shorts Studio cards

• Ctrl+P / Ctrl+N — In the overlay editor: go to the previous / next scene according to the available buttons.

• Ctrl+A — Select all overlays or layers in the active editor.

• Ctrl+X / Ctrl+C / Ctrl+V — Cut / copy / paste overlays or layers; in a text field, act on the text.

• Ctrl+Z / Ctrl+Y — Undo / redo changes in the overlay or card-layer editor.

• Del — Delete the selected element when the canvas, or card-layer list, has focus.

• Ctrl+Enter / Ctrl+Shift+C — In the overlay editor: apply / cancel using the corresponding button.

• Ctrl+M — Minimize / restore the overlay window on Windows.

• Shift — While dragging, suspend snapping in overlays and cards; with the overlay rotation handle, rotate in 15° steps.

Video previews and external GPU players

• Space / Enter — Play or pause / stop in the Timeline preview and GPU players; Numpad Enter is also accepted for stop.

• Home / End — Start / end of the montage; in Tk windows, click the video to focus the player.

• ← / → — In external OpenGL and HDR10 GPU players: seek backward / forward by 5 seconds.

• Ctrl+S / Esc — Save the project / leave fullscreen preview. External GPU players enter fullscreen by double-clicking the video.

Documentation, fields and dialogs

• F11 — In the User manual and Update history: enter / leave fullscreen.

• Ctrl+M — In the User manual and Update history: maximize / restore; if fullscreen is active, leave it first.

• Esc — Manual and History: leave fullscreen, otherwise close. About and Licences: close the window. Import and relink dialogs also provide Esc to cancel.

• Del — In the project import list: remove selected projects from the list.

• Tab / Shift+Tab — Standard navigation to the next / previous control. In a multiline field, Tab may insert a tab character.

• Ctrl+A / Ctrl+C / Ctrl+X / Ctrl+V — In input fields: select / copy / cut / paste text as supported by the control, without editing scenes or layers.

• Enter / Esc — Where provided by a field or dialog: confirm input / cancel editing. The playback commands described above retain their behavior in scene and audio windows.

Troubleshooting and useful shortcuts

Incomplete project: check disks and shares, then relocate media. Slow NAS preview or seeking: compare the same passage from a local copy and record whether the cache is empty or already built; a cached run does not measure first network access. In Auto mode, a failed recovery may trigger CPU fallback for that scene without changing the global preference. Confirmed engines can be remembered to avoid repeated probes; retest after hardware changes. No uniform speed improvement is guaranteed. Interrupted export: read the error, check space, destination and encoder, then rerun preflight.

Muted audio: check activation, volume, start/offset and the Windows device. In GPU preview, after about 750 ms without audio data, a silent video clock allows pictures to continue; this switching delay is not a startup-latency guarantee. Audio can resynchronize if it returns. Advancing video therefore does not prove audio output works: listen after Pause/Resume and consult device diagnostics. For vocal reduction, see the EQ, stereo and AI limits in the dedicated section.

For keys, use All keyboard shortcuts, by window: context changes their action. When reporting a problem, record the version in the title bar of the application actually running, steps and incident time, then attach diagnostics after checking personal information. Distinguish a Python run, a validation build and the Portable/Setup packages actually installed; they may have different versions. From 0.20.366, install Setup once to record its SHA-256. Startup checks can then offer a same-version build if the published digest differs. A Portable/Python copy without a baseline cannot make this comparison. The channel must be published and installation requires your confirmation. The rebuilt 0.20.367 uses HTTPS and mandatory SHA-256, checked again before launch, without requiring Authenticode. Manually install the new 0.20.367 Setup once to receive this configuration; changing only the remote manifest is insufficient. Local rollback packages without a manifest digest still require a valid signature.

User Manual and Update History windows: use Maximize and Restore in the Windows title bar to switch between windowed and maximized states; Ctrl+M does the same. F11 toggles fullscreen; Esc exits it and restores the previous state. Their last position and size are remembered, adjusted to the available screen.

Multi-GPU PCs: startup checks respect the saved NVIDIA, Intel or AMD priority. A real successful NVENC encode with the selected FFmpeg overrides an older cached QSV fallback. Changing priority invalidates previous encoder tests; QSV fallback under Automatic or NVIDIA priority is rechecked after 24 hours. In GPU, Retest GPU engines also re-evaluates the FFmpeg/FFprobe pair while processing is idle and shows the precise fallback reason. If the error reports a required NVENC API newer than the driver provides, update the NVIDIA driver compatible with your card, restart the application and retest. NVIDIA priority cannot make an incompatible driver work. The selected encoder alone does not identify the preview GPU or explain every slowdown.

Stage timings are recorded in diagnostic logs. NVENC accelerates video encoding, not SEP reading or networking; media playback still depends on NAS throughput.

Delivery identity: new packages show the version and a build number in windows, About and filenames (example: v0.20.368_build0002). Each build reserves a distinct number, including failed builds. output/lots keeps both packages and lot.json with checksums and test evidence; existing lots cannot be overwritten. In Updates, Tests for this build shows only results matching the current build. Choose stable delivery verifies and selects a saved lot.json; Restore stable delivery asks for confirmation, verifies files again and starts Setup after the usual project save prompt. Preferences are backed up before launch. The user selected the 8 November 2026 delivery (887 tests across 114 modules) as the stable reference; its old executables have no embedded build number. Numbered server preparations target beta and do not replace stable automatically. Restoring an older app does not convert projects saved in a newer format: retain a compatible project copy.

Local AI video generator

Open Local AI video generator from Timeline or Visual timeline. Choose a scene, or an imported video when the montage is empty. Select an offset and Entire scene (default), or enter a duration in seconds such as 12.5. Duration is bounded by the remaining source, with no 4-second cap. Trim, speed and reverse are respected; montage effects and overlays are excluded from the reference.

The selector distinguishes 31 photo styles and 9 artistic AI styles. The message beneath the settings identifies the active treatment. Photo styles apply their own palette and contrast to original images without AI reconstruction: vivid colors, golden hour, cool atmosphere, monochrome, retro, etc. They retain source detail, geometry and motion at project resolution and frame rate. AI fidelity and prompt controls are hidden for these styles; no generative model is needed.

AI styles transform linework and materials: comic, anime, watercolor, oil painting, pencil, clay, fantasy, science fiction and cyberpunk. They reuse Stable Diffusion 1.5 already installed with StreamerAI Studio. Keyframes are styled every half second using a fixed seed to limit variations. Motion measured in source images propagates the established appearance; keyframes fill newly revealed regions. This replaces Wan reinterpretation that diluted styles. No engine or model is downloaded; the offline v2 archive stays unchanged. These styles require a Vulkan GPU. Generation is local and sends no video to a service.

Structure fidelity defaults to 75%, adjustable from 0 to 95%. For AI styles, higher values limit image transformation; lower values give the model more freedom. It no longer means mixing 75% original image with 25% AI: original colors are not blended back in. An optional prompt of up to 2,000 characters is available for AI styles. Faces, text or objects may change; fast motion and newly revealed regions can still deform. Synthesis uses at most 512 pixels on the long side before fitting the project; UHD output is not native UHD synthesis.

Before/After refreshes automatically after changes to video, style, offset or settings. Before shows the source at the selected offset; After shows the photo palette or first styled AI frame. Final appearance and motion may differ from this still indication. Work runs in the background; changing selection or closing cancels old work and ignores stale results. The last eight previews stay in memory during the session.

Generate a variant waits for the preview to stop. The bar uses actual completed counters: preparation, keyframes and their iterations, motion frames, then encoded duration. Percentages describe the active stage and reset at stage changes; they do not measure remaining time. Operations without counters are identified without invented values. Final 100% follows validation and saving of the silent MP4. Cancel stops the engine and removes temporary files without adding a scene.

When ready, play the video preview. Add to timeline becomes available after the first video frames are played, never from the still comparison alone. Insertion creates a new clip after the source, or at the track end for imported media without a montage; Ctrl+Z undoes it. The source stays intact. Files remain in <project>-videos-IA, or Documents/StreamerEditorPro/Videos-IA for an unsaved project. JSON records engine and settings; last-video-engine.log helps AI diagnosis. Keep the MP4 with the project.

The window is built before being shown; comparisons stay centered and proportional. Size, position and maximized state are saved automatically without repeated-opening drift. Off-screen positions are brought onto the available screen.

Photo styles — photographic palettes :
- Natural cinema
- Vivid travel
- Realistic documentary
- Golden hour
- Blue hour
- Sunset glow
- Tropical escape
- Mediterranean glow
- Nordic atmosphere
- Autumn colors
- Bright winter
- Gentle spring
- Summer light
- Mountain grandeur
- Deep forest
- Luminous ocean
- Golden desert
- Urban architecture
- Night city
- Soft pastel
- Strong contrast
- Film black and white
- Vintage film
- 35 mm cinema
- Super 8 memories
- 1980s mood
- Teal and orange
- Dreamy atmosphere
- Poetic mist
- Dramatic sky
- Film noir

AI styles — artistic transformation :
- Watercolor
- Cinematic science fiction
- Cyberpunk neon
- Enchanted fantasy
- Japanese animation
- Comic-book illustration
- Oil painting
- Pencil sketch
- Clay animation