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Diffstat (limited to 'tools/mq_editor/README.md')
| -rw-r--r-- | tools/mq_editor/README.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/mq_editor/README.md b/tools/mq_editor/README.md index bde7e54..c1f2732 100644 --- a/tools/mq_editor/README.md +++ b/tools/mq_editor/README.md @@ -27,6 +27,7 @@ open tools/mq_editor/index.html - **Hop Size:** 64–1024 samples (default 256) - **Threshold:** dB floor for peak detection (default −60 dB) +- **Prominence:** Min dB height of a peak above its surrounding "valley floor" (default 1.0 dB). Filters out insignificant local maxima. - **f·Power:** checkbox — weight spectrum by frequency (`f·FFT_Power(f)`) before peak detection, accentuating high-frequency peaks - **Keep %:** slider to limit how many partials are shown/synthesized @@ -121,10 +122,10 @@ For a partial at 440 Hz with `spread = 0.02`: `BW ≈ 8.8 Hz`, `r ≈ exp(−π ## Algorithm 1. **STFT:** Overlapping Hann windows, radix-2 FFT -2. **Peak Detection:** Local maxima above threshold + parabolic interpolation; optional `f·Power(f)` frequency weighting to accentuate high-frequency peaks -3. **Forward Tracking:** Birth/death/continuation with frequency-dependent tolerance, candidate persistence +2. **Peak Detection:** Local maxima above threshold + parabolic interpolation. Includes **Prominence Filtering** (rejects peaks not significantly higher than surroundings). Optional `f·Power(f)` weighting. +3. **Forward Tracking:** Birth/death/continuation with frequency-dependent tolerance. Includes **Predictive Kinematic Tracking** (uses velocity to track rapidly moving partials). 4. **Backward Expansion:** Second pass extends each partial leftward to recover onset frames -5. **Bezier Fitting:** Cubic curves with control points at t/3 and 2t/3 +5. **Bezier Fitting:** Cubic curves optimized via **Least-Squares** (minimizes error across all points). ## Implementation Status |