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Generate true 5.1 channel surround sound output
Authored by: hazkid on Feb 18, '09 10:21:57AM

Actually, this hint does work, but ONLY if you have an AC3 soundtrack. The hint on this page explains how to get 5.1 if you do NOT have an AC3 soundtrack. Jack is a real time AAC->AC3 encoder. I happily use the Perian + AC3 Passthrough hack to enjoy 5.1 AC3 over optical from MKV and MPG/DVR-MS files.

Theoretically, 6Ch AAC passed over optical should be recognized if your receiver supports AAC - I've never heard of an American one that does this.

Finally, although I understand why (sort of) Apple uses AAC (AC3 is about 1.5x-2x the size of AAC) it boggles my mind when I try to think of why Apple uses AAC for movies bough on the AppleTV. The ATV has an optical output, is generally used with broadband connections, and would give users a much better experience if Apple simply used AC3 - which is universally supported in the US.

Naren Hazareesingh

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