Biquad Peaking Equalizer Filter (functional) — functional_equalizer

Design biquad peaking equalizer filter and perform filtering. Similar to SoX implementation.

functional_equalizer_biquad(
  waveform,
  sample_rate,
  center_freq,
  gain,
  Q = 0.707
)

Arguments

waveform: (Tensor): audio waveform of dimension of (..., time)
sample_rate: (int): sampling rate of the waveform, e.g. 44100 (Hz)
center_freq: (float): filter's central frequency
gain: (float): desired gain at the boost (or attenuation) in dB
Q: (float, optional): https://en.wikipedia.org/wiki/Q_factor (Default: 0.707)

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