Re: Surround sound via optical spdif out

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Am Samstag 14 Oktober 2006 05:09 schrieb Lee Revell:
> I'm not really a home theater expert, but the DVD standard is AC3 which
> is also known as DD.

DVD standard limits bitrate to 448kbits, though ac3 allows up to 640kbit.

> DTS is an older, less common format.

Nope, it's actually newer, but an optional format.

> I *think* that if AC3 passthrough works then DTS must work - it's just a
> matter of setting a non-audio bit on the stream.

Depends on the receiver. Some play the stream even if non-audio is not set. It 
could be that non-audio is not set, but receiver detects DTS but not DD if 
the non-audio bit isn't set. There exist DTS-Audio CDs, which means instead 
of PCM DTS streams are recorded as CDDA tracks. So here the receiver can't 
rely on the non-audio bit.

Cheers,
-- 
(°=                 =°)
//\ Prakash Punnoor /\\
V_/                 \_V

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