LPCM vs. TrueHD

[PeterTHX]

Originally Posted by Ascended_Saiyan

On what parts did you get 3.1Mbps? I will revisit the movie if you let me know where to look.

They're here and there. Like 0:44:14 (there's a few 3+ peaks in that bombing), 0:58:56, usually explosions. Lots of texture in those.

1:25:01, the big boom actually registered 3.2 Mbps.

I think it samples it every few seconds, because when I start it at different points I get different readings. So depends on what point you "start" at.

"Iwo Jima" is a quiet soundtrack anyway, especially for a war film. I think Eastwood wanted it that way. It's never overpowering at any time the same way "Saving Private Ryan" was.

[Ascended_Saiyan]

Originally Posted by PeterTHX

They're here and there. Like 0:44:14 (there's a few 3+ peaks in that bombing), 0:58:56, usually explosions. Lots of texture in those.

1:25:01, the big boom actually registered 3.2 Mbps.

I think it samples it every few seconds, because when I start it at different points I get different readings. So depends on what point you "start" at.

"Iwo Jima" is a quiet soundtrack anyway, especially for a war film. I think Eastwood wanted it that way. It's never overpowering at any time the same way "Saving Private Ryan" was.

It did hit 3.1 and 3.2 for about 1/10 of a second. That's probably why I missed it.

"Letters from Iwo Jima" may have been a quiet movie, but it still sounds like the edges are rounded off (subdued). I don't think anything will change that. I was like to see the TrueHD bitrates on all their titles. I want to see if those encodes are more like "Letters from Iwo Jima". If so, I can basically assume that most HD DVD titles don't sound as natural as LPCM.

[NutsAboutPS3]

TrueHD is lossless, so will be identical to the uncompressed sound track it was made from. The only way it can sound different to an uncompressed track is if it wasn't made from that uncompressed track, i.e. they differ in some way other than the fact that one is uncompressed and one is TrueHD:
http://www.dolby.com/consumer/technology/trueHD.html

In this respect it's just like using pkzip, and nobody ever complains that their data files just don't seem the same after they've been compressed and extracted from a zip file.

The only way to do a fair comparison is to take an uncompressed track from a Blu-ray disc, encode it to TrueHD, then burn both tracks back to disc and listen to them. This is the only way you can know that you're listening to the same audio track.

[PeterTHX]

"Letters from Iwo Jima" may have been a quiet movie, but it still sounds like the edges are rounded off

Weird. Sounds plenty crisp here, and I have the Cinema ReEQ engaged!
Onkyo TX-SR803 via HDMI.

[Ascended_Saiyan]

Originally Posted by NutsAboutPS3

The only way to do a fair comparison is to take an uncompressed track from a Blu-ray disc, encode it to TrueHD, then burn both tracks back to disc and listen to them. This is the only way you can know that you're listening to the same audio track.

You mean like on "Stomp the Yard"?

Look, I know TrueHD is suppose to be lossless. I've gone through the white papers, too. I'm saying my ears tell me something different than the paperwork. I don't believe my ears are all that special. I believe my eyes over what is written. Just buy or rent "Stomp the Yard" for a direct comparison. I'm not the only one that has noticed this. BTBuck has noticed this, and so has Peter Bracke (highdefdigest) on "The Departed". Read the audio portion of the review.

Do your own tests and post how sensitive your ears are in the thread. Thanks.

[dialog_gvf]

Originally Posted by PeterTHX

They're here and there. Like 0:44:14 (there's a few 3+ peaks in that bombing), 0:58:56, usually explosions. Lots of texture in those.

Hmmm, what is that mess I see in the dust of the explosion that starts at 0:44:14?

Gary

[PeterTHX]

Originally Posted by dialog_gvf

Hmmm, what is that mess I see in the dust of the explosion that starts at 0:44:14?

Gary

Heh. I was referring to the sound texture