Originally Posted by cawgijoe
I'm sorry....I don't agree with the first part of your statement at all.
I just played a demo of Dave Matthew's through my PS3 using Dolby TrueHD via PCM and the sound quality versus regular Dolby Digital is like night and day!
The sound is much clearer. It's almost like a veil has been lifted. Other people who I've played Blu-Ray discs for have also commented on how good the sound is.
I thought somebody would dispute what I said much sooner
. I had a link to a good description of a blind testing, although I can't find it at the moment.
But what you're listening to when you select Dolby Digital is a different track, and one that's quite possibly mastered differently. It may not just be a DD 5.1 encoded version of what you're listening to on the TrueHD track (and in fact it almost certainly isn't
, if it uses the max bit rate and there's still an obvious audible difference).
For years most people have been telling us that DTS at 1.5Mbps is transparent to the original master, and Dolby claimed the same for DD at 640kbps. Even if "transparent" is stretching it a little, there's no way the difference can ever be "night and day".
I think the good thing about the hype over lossless audio on Blu-ray is that it makes it more likely a studio will go all out to do a great job mastering the audio track, instead of just slapping an inferior recording on a DVD as they sometimes did. It's not the HD codec itself that's mainly responsible for great sounding BDs.