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Many game developers seem to be interested in having panning support for audio element in HTML5(references give below). This will allow programs to position audio between left and right speakers. May be adding something like HTMLMediaElement(audio/video).panning = 0 | 1.0 | -1.0 would help. -1.0 only left speaker, +1.0 only right speaker 0.0 both speakers. references: https://bugs.webkit.org/show_bug.cgi?id=56721 http://www.effectgames.com/effect/article.psp.html/joe/My_HTML5_CSS3_Browser_Wish_List#_section_1_3 http://www.phoboslab.org/log/2011/03/the-state-of-html5-audio http://cromwellian.blogspot.com/2011/05/ive-been-having-twitter-back-and-forth.html
Proper 3D positioning in Web Audio might be the better way to address this.
Have a look at 4.14 The AudioPannerNode Interface: http://www.w3.org/TR/2011/WD-webaudio-20111215/#AudioPannerNode-section
closing this bug as it looks like web audio is addressing this.