pyrubberband.pyrb.time_stretch¶
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pyrubberband.pyrb.
time_stretch
(y, sr, rate, rbargs=None)[source]¶ Apply a time stretch of rate to an audio time series.
This uses the tempo form for rubberband, so the higher the rate, the faster the playback.
Parameters: - y : np.ndarray [shape=(n,) or (n, c)]
Audio time series, either single or multichannel
- sr : int > 0
Sampling rate of y
- rate : float > 0
Desired playback rate.
- rbargs
Additional keyword parameters for rubberband
See rubberband -h for details.
Returns: - y_stretch : np.ndarray
Time-stretched audio
Raises: - ValueError
if rate <= 0