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Implementing a fractional octave filterbank for python. Based on Numpy and CFFI.

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PyFilterbank

Filter Banks and Acoustics Tools Package for Python

This package provides filter banks, and other useful tools for the daily work of the acoustician.

The main features are:

  • Fractional octave filter bank (applies to IEC-61260:1995)

  • Spectral weighting filters (IEC 61672:2003)

    • A-Weighting
    • B- and C-weighting
  • Mel-Frequency filterbank (Triangular Filterbank)

    • as Transformation matrix
    • planned: with STFT
  • Second order section / biquad filters and filter design

    • Butterworth SOS
    • RBJ audio EQ filter design module
  • Gammatone filter bank

Documentation

The Documentation is placed on github pages and can be found here.

Installation

To install, pip install git+https://github.com/SiggiGue/pyfilterbank.git.

Status

This Project is in development status, be aware of that. If you find some bugs or if you want to help, just go for it and join!

License

The 4 clause BSD License applies.

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Implementing a fractional octave filterbank for python. Based on Numpy and CFFI.

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