QUOTE(lightning69 @ Apr 7 2010, 10:45 AM)
The difference between 56k vs 256k mp3 would probably sound very different. But as the bitrate gets higher and higher the difference become less and less obvious until to a point where any increase in bitrate cannot be differentiate by the human ears.
The diminishing returns on lossy compression is well documented. But so too are the fidelity of lossless compression.
DTS HDMA and Dolby TrueHD don't work like MP3s. In both codecs, the compression is VBR. That means the more complex audio passages get more bitrate while the quieter ones get much less. Their file sizes would always be bigger than standard DTS (1.5Mbps) or DD (640kbps). You can see the same thing when you compress an audio file using MP3/AAC/WMA and Flac/AAC Lossless.
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Even a lot of pro under lab condition have acknowledge that there isn't much difference between those compress and uncompress audio.
MPCM is uncompressed audio. DTS HDMA and Dolby TrueHD are compressed audio. All deliver master tape quality.
Don't confuse lossless and lossy compression.
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This is It when play on the same cinema with normal DTS could have sound just as good too!!!
It could have. But there is a big difference between sounding good enough to sound fantastic. I remember the snap of the drums that sounded true to life and hardly heard in even normal CDs (16-bit instead of 24-bit master tapes).
There are gourmand and audiophiles and there are people who just like what's in front of them. So let's agree to disagree.
QUOTE(tracktion3 @ Apr 7 2010, 11:21 AM)
you know what, I got "This Is IT" in DVD.ISO format and MKV. The MKV is in 1080p and the DVD is not that clear and I think even lower than 720p. But both use the same sound quality DTS 5.1.
And you know what, he said the mkv version sound better. he he he. it might be due to the 1080p change the perception in audio as well?
The .MKV is probably from the BD. A DTS HDMA track on BD also contains a separate lossy DTS track at 1.5Mbps. The DVD might have the DTS track at 768kbps. There are audible differences.
fuad