functional_deemph_biquad {torchaudio}

ISO 908 CD De-emphasis IIR Filter (functional)

Description

Apply ISO 908 CD de-emphasis (shelving) IIR filter. Similar to SoX implementation.

Usage

functional_deemph_biquad(waveform, sample_rate)

Arguments

waveform

(Tensor): audio waveform of dimension of ⁠(..., time)⁠

sample_rate

(int): sampling rate of the waveform, Allowed sample rate 44100 or 48000

Value

Tensor: Waveform of dimension of ⁠(..., time)⁠

References

• https://sox.sourceforge.net/sox.html

• https://webaudio.github.io/Audio-EQ-Cookbook/audio-eq-cookbook.html