WebKit Bugzilla
New
Browse
Log In
×
Sign in with GitHub
or
Remember my login
Create Account
·
Forgot Password
Forgotten password account recovery
RESOLVED INVALID
71391
Make parameters for webaudio biquad filters consistent
https://bugs.webkit.org/show_bug.cgi?id=71391
Summary
Make parameters for webaudio biquad filters consistent
Raymond Toy
Reported
Wednesday, November 2, 2011 9:13:00 PM UTC
The Q parameter for the biquad filters are treated inconsistently. For all filters except lowpass and highpass filters, Q is the Q parameter, but for the LP and HP filters, Q is the resonance. The LP and HP filters should treat the Q parameter as the Q parameter instead of the resonance.
Attachments
Patch
(4.76 KB, patch)
2011-11-18 11:20 PST
,
Raymond Toy
no flags
Details
Formatted Diff
Diff
View All
Add attachment
proposed patch, testcase, etc.
Raymond Toy
Comment 1
Friday, November 18, 2011 7:20:20 PM UTC
Created
attachment 115839
[details]
Patch
Raymond Toy
Comment 2
Friday, November 18, 2011 7:22:26 PM UTC
Make the Q parameter consistent with the Audio EQ Cookbook. This patch needs to be coordinated with the demos that use lowpass or highpass filters because the meaning of Q has changed. Q is no longer the resonance in dB, but the actual Q factor.
Raymond Toy
Comment 3
Wednesday, January 25, 2012 9:32:55 PM UTC
Make this depend on
bug 71413
, which will add biquad tests so we can inherit the tests from there.
Chris Rogers
Comment 4
Saturday, May 11, 2013 1:43:28 AM UTC
lowpass and highpass are now in spec as resonance in decibels
Zan Dobersek
Comment 5
Thursday, September 5, 2013 4:31:35 PM UTC
Comment on
attachment 115839
[details]
Patch The work on this bug has ceased, removing the r? flag on the patch.
Note
You need to
log in
before you can comment on or make changes to this bug.
Top of Page
Format For Printing
XML
Clone This Bug