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Implements a more robust partial tracking algorithm by using phase
coherence to validate and link spectral peaks across frames. This
significantly improves tracking accuracy, especially for crossing or
closely-spaced partials.
Key changes:
- : The STFT cache now computes and stores the phase for each
frequency bin alongside the magnitude.
- : The peak detection logic now interpolates the
phase for sub-bin accuracy.
- : The core tracking algorithm was replaced with a
phase-aware model. It predicts the expected phase for a partial in
the next frame and uses a cost function combining both frequency and
phase error to find the best match.
This implementation follows the design outlined in the new document
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handoff(Gemini): Phase prediction implemented. Further tuning of the cost function weights may be beneficial.
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