PAFX

Inroduction

PAFX stands for Python Audio Effects. This library includes implemenation of some audio effects commonly used, and all written in Python.

Usage

Please check the file test_pafx.py for examples. On audio clip was taken from CD of the book Mixing Audio for testing.

Features

• [ ] Stereo Signal
• [X] Biquad IIR Filters
• [X] Comb Filter
• [X] Equalizer
• [X] Reverb
• [X] Delay Line
• [X] Chorus
• [X] Echo
• [X] Fade-in/Fade-out
• [ ] Flanger
• [X] Vibrato
• [X] Tremolo
• [ ] Tempo Scaling
• [ ] Pitch Shift
• [ ] Phaser
• [ ] Wah-Wah
• [ ] Compressor
• [ ] Limiter
• [ ] Noise Gates and Expander
• [ ] Multi-band compression/expansion/limiting
• [ ] Distortion

Reference

• Zölzer U, Amatriain X, Arfib D, et al. DAFX-Digital audio effects. John Wiley & Sons, 2002.
• Reiss J D, McPherson A. Audio effects: theory, implementation and application. CRC Press, 2014.
• Izhaki R. Mixing audio: concepts, practices, and tools. Routledge, 2017.
• SoX - Sound eXchange, http://sox.sourceforge.net/
• Freeverb3, http://www.nongnu.org/freeverb3/