[Webkit-unassigned] [Bug 181191] New: Lowpass and Highpass Biquads use old formulas

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=181191

            Bug ID: 181191
           Summary: Lowpass and Highpass Biquads use old formulas
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: All
                OS: macOS 10.13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: webkit.org at ricciadams.com

The WebAudio spec for biquad filters was updated in April 2016 to use the Audio Cookbook formulas.

Safari and WebKit are still using the old formulas.

See these URLs for more info:
https://github.com/WebAudio/web-audio-api/issues/771
https://www.chromestatus.com/feature/5687523284090880
https://github.com/GoogleChromeLabs/web-audio-samples/wiki/Detection-of-lowpass-BiquadFilter-implementation
https://rtoy.github.io/webaudio-hacks/more/biquad/biquad-lowpass-q.html?usedB=true

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