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Original Message

they need to switch other formats

Posted by Joe Murphy Jr on January 4, 2008 at 23:56:45:
Drop VC-1 in favor of AVC and begin using DTS-HD Master Audio or use Dolby TrueHD with Dialog Normalization set to -31dB (the OFF setting) like Sony has been doing with their Blu-ray titles.

As I said months ago, even if DTS includes a Dialog Normalization control in their encoder (they do), because they are more quality oriented than Dolby, it would be set to OFF as the default (it's been confirmed the default is OFF). The goal of a lossless codec is to be a mirror image of the master after decompression. If the volume of the decompressed lossless soundtrack is lower than its PCM counterpart, then something is wrong. Dialog Normalization re-encodes the feed of the master soundtrack in order to use digital manipulation (digital volume control): it is therefore no longer lossless! Dolby crippled their encoder by forcing Dialog Normalization to default to -27dB (it's always ON, unless the engineer manually sets it to -31dB, which is OFF).