torchaudio.functional.loudness

torchaudio.functional.loudness(waveform: Tensor, sample_rate: int)

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

Parameters:

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

• sample_rate (int) – sampling rate of the waveform

Returns:

loudness estimates (LKFS)

Return type:

Tensor

Reference:

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