extract
Extract a complete pitch contour from audio samples.
Automatically resamples to 16kHz internally if needed.
Applies artifact rejection:
Amplitude gating: frames below RMS threshold are marked unvoiced
Confidence thresholding: frames with low confidence are marked unvoiced
Outlier rejection (if enabled): isolated pitch points are marked unvoiced
Return
PitchContour with detected pitch points at each hop interval
Parameters
audio
Audio samples as Float (-1.0 to 1.0 range)
sample
Sample rate of the input audio