RESOLVED FIXED72437
"stuttering and warping" instead of the expected sounds on Vista 64. 
https://bugs.webkit.org/show_bug.cgi?id=72437
Summary "stuttering and warping" instead of the expected sounds on Vista 64.
Boris Smus
Reported 2011-11-15 16:17:14 PST
On behalf of an external developer, logging a performance bug on Vista 64. They are hearing "stuttering and warping" instead of the expected sounds on various Web Audio samples, for example http://chromium.googlecode.com/svn/trunk/samples/audio/visualizer-gl.html Their system specs: Hardware Motherboard - ASUS P5N32-E SLI Processor - Intel Core2 Quad Q6600 Memory - 6 Gig DDR2 Graphics - GeForce GTX 260 Drivers Sound - onboard motherboard (SoundMAX Integrated Digital HD Audio) 6.10.2.6110 16/01/2007 Graphics - NVIDIA 8.17.12.7533 20/05/2011 OS Vista64 Home premium Notably, a second developer from the same company had the same issue, also on Vista64. His PC is an i7 920, so much more up to date hardware.
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Chris Rogers
Comment 1 2011-12-13 21:00:45 PST
This sounds more like a chromium audio back-end issue specific to Windows, not WebKit.
Chris Rogers
Comment 2 2012-01-05 19:35:34 PST
This is a chromium bug (not WebKit): http://code.google.com/p/chromium/issues/detail?id=108692 This has been fixed in chromium patch adding WASAPI support: http://src.chromium.org/viewvc/chrome?view=rev&revision=110282 closing bug
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