We have collected the most relevant information on Robert Bristow Johnson Audio Equalizer Cookbook. Open the URLs, which are collected below, and you will find all the info you are interested in.
Audio EQ Cookbook - W3
https://www.w3.org/TR/audio-eq-cookbook/
Adapted from Audio-EQ-Cookbook.txt, by Robert Bristow-Johnson, with permission. 2. Biquad Filter Formulae. All filter transfer functions were derived from analog prototypes (that are shown below for each equalizer (EQ) filter type) and had been digitized using the Bilinear Transform (BLT).
RBJ Audio-EQ-Cookbook — Musicdsp.org documentation
https://www.musicdsp.org/en/latest/Filters/197-rbj-audio-eq-cookbook.html
The shelf slope, in > dB/octave, remains proportional to S for all other values for a > fixed f0/Fs and dBgain. The precise relation for both low and high shelf filters is S = -s * log_2(10)/40 * sin(w0)/w0 * (A^2+1)/(A^2-1) where s is the true shelf midpoint slope in dB/oct and w0, A are defined in the Cookbook just below the quoted paragraph.
Cookbook formulae for audio equalizer biquad filter ...
http://shepazu.github.io/Audio-EQ-Cookbook/audio-eq-cookbook.html
Special thanks to Robert Bristow-Johnson for creating the Audio EQ Cookbook and permitting its adaption and use for the Web Audio API. Thanks to Peter Krautzberger for help in adapting these mathematical formulae to MathML, and to the whole MathJax team for making the JavaScript extension that makes the use of math on the web possible.
Cookbook formulae for audio EQ biquad filter coefficients
https://webaudio.github.io/Audio-EQ-Cookbook/audio-eq-cookbook.html
Adapted from Audio-EQ-Cookbook.txt, by Robert Bristow-Johnson, with permission. Biquad Filter Formulae. All filter transfer functions were derived from analog prototypes (that are shown below for each equalizer (EQ) filter type) and had been digitized using the Bilinear Transform (BLT).
RBJ Audio-EQ-Cookbook — Musicdsp.org documentation
https://www.musicdsp.org/en/latest/Filters/198-rbj-audio-eq-cookbook.html
It results in some kind of bad resonance at higher samplerates. Now I found this 'beta' in an older version of your paper (I think), describing: -- beta = sqrt (A)/Q (for shelving EQ filters only) = sqrt (A)*sqrt [ (A + 1/A)* (1/S - 1) + 2 ] (if shelf slope is specified) = sqrt [ (A^2 + 1)/S - (A-1)^2 ] -- ..and here the sqrt (A)*sqrt [ (A + 1 ...
Now you know Robert Bristow Johnson Audio Equalizer Cookbook
Now that you know Robert Bristow Johnson Audio Equalizer Cookbook, we suggest that you familiarize yourself with information on similar questions.
