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In Reply to: Bingo -- it's lossy. posted by Michi on September 27, 2005 at 01:17:52:
Rebit's purpose is to save space when 24 bits are not needed in one or more channels.In a multichannel recording where the rears are mostly used to record the ambiant sound then the dynamic range in these channels is fairly limited aleady. So re-bit can save some space if the dynamic range isn't used to the full extend. In such a scenario it's perfectly lossless. (A bitcheck of these track easily confirms how many of the bits are actually used.)
The 'keep the 24 bit indicator lit' is just half the story. By padding the decoded word up to 24bits in the MLP decoder the design of the subsequent filter/dac design simpler.
Note that this option helps out with the current limitations of the DVD format.
The other end of the scale of MLP's capabilies is that it can encode up to 63 channels at 24/192ks perfectly lossless.
Frank
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Follow Ups
- It depends... - Frank.. 14:24:09 09/27/05 (0)
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