Vol

class torchaudio.transforms.Vol(gain: float, gain_type: str = 'amplitude')

Adjust volume of waveform.

Parameters:

• gain (float) – Interpreted according to the given gain_type: If gain_type = amplitude, gain is a positive amplitude ratio. If gain_type = power, gain is a power (voltage squared). If gain_type = db, gain is in decibels.

• gain_type (str, optional) – Type of gain. One of: amplitude, power, db (Default: amplitude)

Example

>>> waveform, sample_rate = torchaudio.load("test.wav", normalize=True)
>>> transform = transforms.Vol(gain=0.5, gain_type="amplitude")
>>> quieter_waveform = transform(waveform)

forward(waveform: Tensor) → Tensor

Parameters:

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

Returns:

Tensor of audio of dimension (…, time).

Return type:

Tensor