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Original thread:
Post 18 made on Thursday January 8, 2009 at 00:41
Daniel Tonks
Wrangler of Remotes
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October 1998
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I don't know the full variants of dts-HD High Res, but basically it's normal DTS with more channel support and higher bitrates... thus higher quality sound, but it's still "lossy". I'm not sure it's been used on many mainstream discs; most seem to go right to some sort of uncompressed audio, or cheap out and only provide Dolby Digital (such as Warner is prone to doing).

Since the S500 apparantly can't handle DTS HD Master Audio, what you're getting is the core DTS 1.5mbit track, decoded to 5.1 analog. For LPCM it would be decoded to 5.1 LPCM, since there can only be 5.1 channels in the core track. But since it DOES handle the High Res codec, it'll decode that to however many channels the track actually has, up to 7.1.

DTS HD Master Audio was always something of a sticky format. It wasn't a mandated specification for BD players, thus there was little support for it in players, despite companies such as Fox making it their primary codec very early on.

You'll be hearing uncompressed from discs with LPCM or TrueHD.


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