torchaudio.functional.contrast

torchaudio.functional.contrast(waveform: Tensor, enhancement_amount: float = 75.0) → Tensor

Apply contrast effect. Similar to SoX implementation.

Comparable with compression, this effect modifies an audio signal to make it sound louder

Parameters:

• waveform (Tensor) – audio waveform of dimension of (…, time)

• enhancement_amount (float, optional) – controls the amount of the enhancement Allowed range of values for enhancement_amount : 0-100 Note that enhancement_amount = 0 still gives a significant contrast enhancement

Returns:

Waveform of dimension of (…, time)

Return type:

Tensor

Reference:

• http://sox.sourceforge.net/sox.html