Ares MP4 Compilation Architect - Phase 8.4 Visible Fast 5.1 Export

MP4 Clip Vault

Drop MIDI2MP4 Studio outputs here. Add or relink media without sending files anywhere.

Add or relink MP4 outputs Multiple files supported. Phase 8.4 keeps Fast 5.1 MP4 visible in the header and export panel for source-preserve playlist stitching while keeping realtime rendering as fallback.

Relink Folder

Composition Preview

No timeline items loaded.

Ready

Timeline

Drag items to reorder. Gaps and transitions are saved with the project.

Zoom 1.00x Snap trims

0 clips 0 gaps 0 transitions 00:00 0 missing

Inspector, Package, and Export

Edit clips, package project data, relink media, validate export readiness, and record the stitched compilation.

Project

Compilation title

Width Height

FPS Legacy global gap seconds

Background Show clip title overlay

Phase 7 Master Audio

Master volume 100% Silence slate seconds 2.00s

Enable soft limiter during export

The master bus is browser-native. Fades and envelopes are applied during preview and stitched recording. The limiter uses Web Audio when the browser allows it.

Phase 3/4 Builder

Default transition Default transition duration 1.00s Transitions belong to the item before the next timeline item. Cut duration exports as zero.

Phase 4 Branding Layer

Visual preset

Global brand title Global brand subtitle

Overlay style Accent color

Overlay opacity 52%

Show logo / watermark Show title-safe guides

Load Watermark Image

No watermark image loaded.

Watermark position Watermark size 14%

Watermark opacity 72% Watermark media is session-loaded only. Project JSON stores the filename reminder, not the image binary.

Phase 8.4 Fast Assembly and Source-Preserve Export

Strict match: resolution, dimensions, and container

Fast path waiting for timeline data.

Phase 8.4 keeps the uploaded split FFmpeg WASM batch, makes Fast 5.1 MP4 visible as its own export action, and refuses zero-byte browser recorder downloads.

For maximum speed and original audio preservation, use source-preserve MP4 when you can accept hard cuts and no burned-in overlays. Use Record Stitch when the final video must include transitions, gaps, overlays, lower thirds, watermarks, fades, or gain processing.

Phase 6 Relink / Cache

Relink Folder Relink Selected

No project media is missing.

Cache status waiting for media.

Projects still save references, not embedded video. Phase 6 stores fingerprints for reliable matching. Optional cache uses this browser's IndexedDB storage and can be cleared anytime.

Selected Timeline Item

Select a clip or gap to edit. Select a clip before another item to edit its transition out.

Display title

Trim in Trim out

Volume 100%

Phase 7 Clip Audio

Fade in Fade out

Gain envelope

Waveform not scanned yet.

Transition After This Item

No following item. Transition out is disabled for the final timeline item.

Transition type Duration 0.00s

Keyboard

Space play / pause Esc stop Left / Right select item Alt + Left / Right move item Del remove unlocked item

Phase 5-8 Export Reliability

Preflight waiting for timeline data.

Failure guide: no export attempt yet.

Export

Preferred recording type Monitor audio during export

Fast 5.1 MP4Fast source-preserve MP4 stitch for compatible full MP4 clips. Skips rendered effects by design.

Split FFmpeg idle. Strict stitch keeps the exact timeline rules; Fast 5.1 MP4 preserves source streams and flattens render-only effects to hard cuts.

Idle.

Load EDL

Auto Export keeps the safe behavior: strict split FFmpeg when possible, otherwise Record Stitch. Use Fast 5.1 MP4 when speed and original source audio preservation matter more than rendered effects.