resample

Sample-rate conversion and channel layout, on the vendored soxr resampler.

specux.audio.resample(y, orig_sr, target_sr, quality="high")

y, sr = specux.audio.load("take.wav")
y16 = specux.audio.resample(y, sr, 16000)
y16 = specux.audio.resample(y, sr, 16000, quality="very_high")

quality selects the recipe: "quick", "low", "medium", "high" (default), "very_high". Loading at a target rate fuses the conversion into the decode instead: specux.audio.load("take.wav", sr=16000).

Channel layout

m = specux.audio.to_mono(y)       # mean over channels, shape (frames,)
s = specux.audio.to_stereo(y)     # duplicate mono / pass stereo through