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<!DOCTYPE bugzilla SYSTEM "https://www.w3.org/Bugs/Public/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4"
          urlbase="https://www.w3.org/Bugs/Public/"
          
          maintainer="sysbot+bugzilla@w3.org"
>

    <bug>
          <bug_id>17363</bug_id>
          
          <creation_ts>2012-06-05 11:51:00 +0000</creation_ts>
          <short_desc>(BiquadFilterNode): BiquadFilterNode is underdefined</short_desc>
          <delta_ts>2014-10-28 17:17:57 +0000</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>AudioWG</product>
          <component>Web Audio API</component>
          <version>unspecified</version>
          <rep_platform>PC</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>CLOSED</bug_status>
          <resolution>WONTFIX</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>normal</bug_severity>
          <target_milestone>TBD</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Philip Jägenstedt">philipj</reporter>
          <assigned_to name="Chris Rogers">crogers</assigned_to>
          <cc>olivier.thereaux</cc>
    
    <cc>public-audio</cc>
          
          <qa_contact name="This bug has no owner yet - up for the taking">dave.null</qa_contact>

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>68674</commentid>
    <comment_count>0</comment_count>
    <who name="Philip Jägenstedt">philipj</who>
    <bug_when>2012-06-05 11:51:00 +0000</bug_when>
    <thetext>Audio-ISSUE-76 (BiquadFilterNode): BiquadFilterNode is underdefined [Web Audio API]

http://www.w3.org/2011/audio/track/issues/76

Raised by: Philip Jägenstedt
On product: Web Audio API

https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#BiquadFilterNode

The filter operation is undefined, with wording such as &quot;standard second-order resonant lowpass filter with 12dB/octave rolloff.&quot; A lot more specificity is required.

Wikipedia is the reference for several of the filter modes. We could not find any mode that is implementable given the information provided.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>85475</commentid>
    <comment_count>1</comment_count>
    <who name="Olivier Thereaux">olivier.thereaux</who>
    <bug_when>2013-04-03 08:17:33 +0000</bug_when>
    <thetext>Per discussion at Audio WG f2f 2013-03-26

We discussed how much of the maths should be specified for the BiquadFilterNode.

The consensus:

* remove the wikipedia links (they can be used in developer documentation)
* publish a stable version of RBJ&apos;s Audio Cookbook and refer to that

See - http://lists.w3.org/Archives/Public/public-audio/2013AprJun/0006.html</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>113969</commentid>
    <comment_count>2</comment_count>
    <who name="Olivier Thereaux">olivier.thereaux</who>
    <bug_when>2014-10-28 17:14:58 +0000</bug_when>
    <thetext>Web Audio API issues have been migrated to Github. 
See https://github.com/WebAudio/web-audio-api/issues</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>114119</commentid>
    <comment_count>3</comment_count>
    <who name="Olivier Thereaux">olivier.thereaux</who>
    <bug_when>2014-10-28 17:17:57 +0000</bug_when>
    <thetext>Closing. See https://github.com/WebAudio/web-audio-api/issues for up to date list of issues for the Web Audio API.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>