looking forward to support time_stretch and pitch_shift.

[agangzz]

looking forward to support some useful features, such as time_stretch and pitch_shift.

[KinWaiCheuk]

May I know which library are you using for time_stretch and pitch_shift now? As far as I know, these operations will output a modified version of the audio arrays.

If you could tell me the existing library you are using for these operations, I will check if it is possible to vectorize these operations.

[agangzz]

librosa can support time_stretch and pitch_shif, but can't run in GPU.

librosa.effects.time_stretch
https://librosa.org/doc/main/generated/librosa.effects.time_stretch.html#librosa.effects.time_stretch

librosa.effects.pitch_shift
https://librosa.org/doc/main/generated/librosa.effects.pitch_shift.html#librosa-effects-pitch-shift

and the resample feature also very useful for audio processing, such as
Julius, fast PyTorch based resampling for audio and 1D signals
https://github.com/adefossez/julius/