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Okay, as far as I can tell, the DVD-Video standard dictates that the… - The Veritable TechNinja [entries|archive|friends|userinfo]
The Veritable TechNinja

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[Aug. 18th, 2005|10:02 am]
The Veritable TechNinja
[status |geekygeeky]

Okay, as far as I can tell, the DVD-Video standard dictates that the audio track(s) must be encoded at a maximum of 24bit/48KHz. Can anyone confirm? I'm about to buy a rather oldie-but-goodie audio processor that only has a 48KHz DAC. Don't care about DVD-Audio, if it finally catches on I'll get a new processor/preamp, but I doubt it. There's mention of LPCM audio tracks at 96KHz, but I can't seem to find absolutely clear statistics on how rare a 96KHz DVD is (seems infinitesimal, though). Help, audio dorks!

Also, buy my couch/entertainment center/bedframe/dresser/Victrola, dammit!
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Comments:
From: pulse_state
2005-08-18 02:27 pm (UTC)
As far as I know, DVD audio standard dictates that 48 KHz is the absolute maximum sample rate that can be on a DVD. A really good DVD player will support LPCM (which is really just headerless WAV under a different name), AC3 (also known as ATSC-A/52), MPEG-1 layer 2, and DTS.

Try http://www.videohelp.com if you need to know more.
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[User Picture]From: arcsine
2005-08-18 02:52 pm (UTC)
I'm almost certain there's just a couple of pretentious classic rock concert DVDs with 96KHz LPCM audio tracks, since the file size would choke out any decent video bitrate. Besides, the DVD player I'm looking at has a 192KHz DAC on it, so I can still decode it if necessary. True, the DAC in the DVD player isn't nearly as good as the dCS DAC in the amp, and the amp doesn't have pre-ins for the center and rear channels, but 192KHz 5.1 channel tracks are too big to fit _any_ video on anyway. 5 years down the road when the RIAA shoves HD-DVD/BluRay down our throats I'll buy a new prepro.
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From: pulse_state
2005-08-18 04:15 pm (UTC)
Yeah, get the one with the 192 kHz DAC on it. It couldn't hurt. I generally look at what supports the most stuff first, though, so I don't have to do all that much conversion for downloaded movies.

Besides, how many "pretentious classic rock concert DVDs" are you actually going to buy? :P
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