Collection of alterable digital biquad filters for dynamic audio effect creation
Project description
Alterable biquad filters
This is a collection of digital biquad filters whose parameters frequency and quality can be varied at runtime. Following filter implementations are available:
- Allpass
- Bandpass
- Highpass
- Lowpass
- Highshelf
- Lowshelf
- Notch
- Peak
Basic usage
Filter with persistent configuration:
import biquad
import numpy as np
# load audio samples somehow
x, sr = np.zeros(...), 44100
# create a filter of your choice
f = biquad.bandpass(sr, f=sr/4, q=1)
# process all audio samples
y = f(x)
Filter with dynamic configuration:
import biquad
import numpy as np
# load audio samples somehow
x, sr = np.zeros(...), 44100
# create a filter of your choice
f = biquad.bandpass(sr)
# create parameter modifications as you like
myf = np.linspace(1, sr/4, len(x))
myq = np.linspace(2, 1/2, len(x))
# process all audio samples
y = f(x, f=myf, q=myq)
See also
Cookbook formulae for audio equalizer biquad filter coefficients
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Source Distribution
biquad-0.3.tar.gz
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Built Distribution
biquad-0.3-py3-none-any.whl
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