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[large] In-app audio editor / video→audio extractor #197

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opened 2026-09-17 23:24:14 -04:00 by jared · 0 comments
jared commented 2026-09-17 23:24:14 -04:00
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Migrated from LOTUS_TODO.md on 2026-09-17 (the file is now reference-only).

[ ] Basic in-app audio editor / video→audio extractor (LARGE PROJECT)

A minimal audio editor for soundboard clips and voice content. Scope: (1) trim/clip an audio file to a chosen start/end (waveform scrubber, in/out handles); (2) upload a video file → strip and discard the video track, keep only the audio (extract audio, then the source video is dropped — never uploaded/stored); (3) minimal edits only (trim, maybe gain/normalize, fade in/out) — not a full DAW. Likely Web Audio API (AudioContext.decodeAudioData → trim AudioBuffer → re-encode) + MediaRecorder/an encoder for output; video demux via a <video>+MediaElementSource capture or ffmpeg.wasm (weigh bundle cost). Feeds the soundboard uploader (utils/soundboardClips.ts, SoundboardPackEditor) and attachments. Design under TDS + native-cinny law. Big build — plan a dedicated session; evaluate ffmpeg.wasm size/CSP (wasm) before committing.

_Migrated from `LOTUS_TODO.md` on 2026-09-17 (the file is now reference-only)._ ### [ ] Basic in-app audio editor / video→audio extractor (LARGE PROJECT) A minimal audio editor for soundboard clips and voice content. Scope: (1) **trim/clip** an audio file to a chosen start/end (waveform scrubber, in/out handles); (2) **upload a video file → strip and discard the video track, keep only the audio** (extract audio, then the source video is dropped — never uploaded/stored); (3) minimal edits only (trim, maybe gain/normalize, fade in/out) — not a full DAW. Likely Web Audio API (`AudioContext.decodeAudioData` → trim `AudioBuffer` → re-encode) + `MediaRecorder`/an encoder for output; video demux via a `<video>`+`MediaElementSource` capture or ffmpeg.wasm (weigh bundle cost). Feeds the soundboard uploader (`utils/soundboardClips.ts`, `SoundboardPackEditor`) and attachments. Design under TDS + native-cinny law. Big build — plan a dedicated session; evaluate ffmpeg.wasm size/CSP (wasm) before committing.
jared added the enhancementpriority: lowarea: mediaplanning labels 2026-09-17 23:24:14 -04:00
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Accessibility: keyboard, screen reader, contrast, motion
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Reference: LotusGuild/cinny#197