Caution

You're reading an old version of this documentation. If you want up-to-date information, please have a look at 0.9.1.

Effects

Harmonic-percussive source separation

hpss(y, **kwargs)	Decompose an audio time series into harmonic and percussive components.
harmonic(y, **kwargs)	Extract harmonic elements from an audio time-series.
percussive(y, **kwargs)	Extract percussive elements from an audio time-series.

Time and frequency

time_stretch(y, rate, **kwargs)	Time-stretch an audio series by a fixed rate.
pitch_shift(y, sr, n_steps[, ...])	Shift the pitch of a waveform by n_steps steps.

Miscellaneous

remix(y, intervals[, align_zeros])	Remix an audio signal by re-ordering time intervals.
trim(y[, top_db, ref, frame_length, hop_length])	Trim leading and trailing silence from an audio signal.
split(y[, top_db, ref, frame_length, hop_length])	Split an audio signal into non-silent intervals.
preemphasis(y[, coef, zi, return_zf])	Pre-emphasize an audio signal with a first-order auto-regressive filter:
deemphasis(y[, coef, zi])	De-emphasize an audio signal with the inverse operation of preemphasis():