28.2.11 Changing the sampling rate of an audio clip
The resample
command resamples a clip to a desired rate.
-
resample takes one mandatory argument and two
optional arguments:
-
A, an audio clip.
- Optionally, r, the target sample rate in Hz (by default
r=44100).
- Optionally, n, an integer specifying the quality level,
from 0 (poor) to 4 (best) (by default, n=2).
- resample(A ⟨,r,n⟩)
returns the audio clip A resampled to rate r.
- Xcas does resampling by using the
libsamplerate library.
For more information see the library documentation.
Example
Assuming that the directory sounds contains example.wav, a
wav file with a sample rate of 44100:
| clip:=readwav("/path/to/sounds/example.wav"):; samplerate(clip) |
| res:=resample(clip,48000):; samplerate(res) |