Loudness

class torchaudio.transforms.Loudness(sample_rate: int)

Measure audio loudness according to the ITU-R BS.1770-4 recommendation.

Parameters:

sample_rate (int) – Sample rate of audio signal.

Example

>>> waveform, sample_rate = torchaudio.load("test.wav", normalize=True)
>>> transform = transforms.Loudness(sample_rate)
>>> loudness = transform(waveform)

Reference:

• https://www.itu.int/rec/R-REC-BS.1770-4-201510-I/en

forward(wavefrom: Tensor)

Parameters:

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

Returns:

loudness estimates (LKFS)

Return type:

Tensor