priya-sundaram-dev
70b9e2fb35
* Clean up the audio_filters directory - Restore equal_loudness_filter.py: replace the third-party 'yulewalker' dependency with a dependency-free 'yulewalk' implementation (numpy + scipy only, both already project dependencies) so the filter works again. - Fix two bugs in iir_filter.set_coefficients: the a0-omitted branch never triggered, and the b_coeffs length error reported len(a_coeffs). - Add doctests covering valid and erroneous inputs (coefficient-length errors, yulewalk input validation). - Add Wikipedia URLs to the docstrings that were missing them. - Add two new RBJ Audio EQ Cookbook filters: make_notch and make_bandpass_peak. - Rewrite audio_filters/README.md to document every file and filter. * audio_filters: clarify make_notch, document biquad notation, tighten set_coefficients guard - Add a shared notation guide to butterworth_filter so the single-letter RBJ-cookbook names (w0/alpha/a0..a2/b0..b2) are self-explanatory across every filter instead of diverging in one function. - Comment make_notch's feed-forward/feed-back sections in plain English. - set_coefficients only fills the optional a_0 when exactly one coefficient is missing, so genuinely too-short inputs raise with their real length (new regression doctest).
Implementations are for learning purposes only. They may be less efficient than the implementations in the Python standard library. Use them at your discretion.
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