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diff --git a/doc/COMPLETED.md b/doc/COMPLETED.md index 47e1f29..67724a1 100644 --- a/doc/COMPLETED.md +++ b/doc/COMPLETED.md @@ -31,6 +31,22 @@ Use `read @doc/archive/FILENAME.md` to access archived documents. ## Recently Completed (February 17, 2026) +- [x] **MQ Spectral Editor Phase 2: JS Synthesizer** + - **Goal**: Preview synthesized audio from MQ partials in browser + - **Deliverables**: + - `mq_synth.js`: Replica oscillator bank with bezier evaluation + - Cubic bezier curve evaluation (De Casteljau algorithm) + - Replica synthesis: frequency spread (±2%), amplitude decay (exp), phase jitter (5%) + - PCM buffer generation from partials with normalization + - Web Audio API playback integration + - Keyboard shortcuts: '1' plays synthesized, '2' plays original + - Mini-spectrum viewer (bottom-right, 200×100, cyan-yellow gradient) + - STFT cache optimization (pre-compute all FFT frames, shared access) + - Dynamic cache updates when hop size changes + - **Performance**: Eliminated redundant FFT computations, instant spectrum lookups + - **Files**: `mq_synth.js` (new), `fft.js` (STFTCache), `index.html`, `viewer.js` + - **Next**: Phase 3 (editing UI - drag control points, adjust replicas) + - [x] **MQ Spectral Editor Phase 1: Extraction & Visualization** - **Goal**: Web-based McAulay-Quatieri sinusoidal analysis for procedural audio compression - **Deliverables**: |