HiDef Audio face-off: Which would you rather have? - DVDfile.com forum for DVD, Blu-Ray, and HD-DVD

Ruined · 07-06-2007, 03:24 PM

Here is the scenario:

An HD DVD compressionist only has room on a title for a 5.1 track that has ~3.5mbps average bitrate and no more than 5mbps peak. He has to make a decision: Lossless TrueHD 24bit/48khz @3.4mbps ABR *OR* Lossy DTS-HD 24bit/96khz @3mbps CBR. To be fair, some may argue that the DTS-HD track could be considered "Perceptually Lossless" due to its high bitrate. Also, the master itself is 24bit/96khz, so it will need to be downsampled for the lossless track.

Which one would YOU prefer the compressionist went with in this hypothetical scenario?

videoworx · 07-06-2007, 03:39 PM

I would go with the one that sounds better.

Pirate · 07-06-2007, 05:27 PM

I would rather have the one that's more "cinema-accurate," if that's something the compressionist can accomplish. If the DTS track is going to be pumped-up and over-processed, I want the TrueHD version (or vice versa).

I'm not sure how we can answer this question without knowing more details or having a sound test.

Derb · 07-06-2007, 09:13 PM

Voted Lossless Dolby TrueHD 5.1 24bit/48khz @ 3.4mbps (ABR)

Lossy dts is nice, but TrueHD sounds better imo.

ganthc · 07-07-2007, 06:59 AM

I chose THD, but I hate that you didn't put PCM down.

Ruined · 07-07-2007, 07:51 AM

Quote:

Originally Posted by ganthc

I chose THD, but I hate that you didn't put PCM down.

PCM takes up too much space even at 16bit/48khz to work in the scenario of the original post and be comparable to these two codecs. And, since TrueHD is bit-for-bit mathematically identical to PCM at equal bit resolution/sampling rate, it would be a redundant choice in terms of quality.

Iguana Man · 07-07-2007, 02:22 PM

From what little I know of all this stuff, lossless 'should' be better. However, my gut tells me unless heard in a killer setup, the differences would be hard to discern.

I'd love to know how you voted Ruined, but I guess I'll go with both sounding excellent.

Ruined · 07-07-2007, 05:25 PM

Quote:

Originally Posted by Iguana Man

From what little I know of all this stuff, lossless 'should' be better. However, my gut tells me unless heard in a killer setup, the differences would be hard to discern.

I'd love to know how you voted Ruined, but I guess I'll go with both sounding excellent.

I went with lossless 24/48 because IMO the differences between 24/48 and 24/96 are inaudible.

Derb · 07-08-2007, 02:12 AM

Quote:

Originally Posted by Ruined

I went with lossless 24/48 because IMO the differences between 24/48 and 24/96 are inaudible.

Ok, was gonna rant away but saw your "IMO" so all is good.

mighty mint · 07-08-2007, 01:32 PM

I voted for the DTS because it looked lonely

...now in thinking about things a bit more I would need to hear both side by side to determine what sounded better to me. So, yeah, the "I would go with what sounds best" is probably a more accuarate answer than what I put on the poll.

View Poll Results: Which audio codec would you prefer?
Lossless Dolby TrueHD 5.1 24bit/48khz @ 3.4mbps (ABR)	7	53.85%
Lossy DTS-HD 5.1 24bit/96khz @ 3mbps (CBR)	1	7.69%
It doesn't matter to me, they both will sound excellent.	5	38.46%
Voters: 13. You may not vote on this poll

07-06-2007, 03:24 PM	#1 (permalink)
Ruined It's Good to Play Together Join Date: Oct 2001 Location: NJ, USA	HiDef Audio face-off: Which would you rather have? Here is the scenario: An HD DVD compressionist only has room on a title for a 5.1 track that has ~3.5mbps average bitrate and no more than 5mbps peak. He has to make a decision: Lossless TrueHD 24bit/48khz @3.4mbps ABR OR Lossy DTS-HD 24bit/96khz @3mbps CBR. To be fair, some may argue that the DTS-HD track could be considered "Perceptually Lossless" due to its high bitrate. Also, the master itself is 24bit/96khz, so it will need to be downsampled for the lossless track. Which one would YOU prefer the compressionist went with in this hypothetical scenario? __________________ For every shadow, no matter how deep, is threatened by morning light. Last edited by Ruined : 07-06-2007 at 03:58 PM.

07-06-2007, 03:39 PM	#2 (permalink)
videoworx Would Make a Good Incubus Join Date: Mar 2002 Location: nowhere near Nebraska	I would go with the one that sounds better. __________________ And let’s not forget the fact that Tron turned the Frisbee into an instrument of righteous smiting.

07-06-2007, 05:27 PM	#3 (permalink)
Pirate Moderator Emeritus Loves Yellow Subtitles Join Date: Jun 2003	I would rather have the one that's more "cinema-accurate," if that's something the compressionist can accomplish. If the DTS track is going to be pumped-up and over-processed, I want the TrueHD version (or vice versa). I'm not sure how we can answer this question without knowing more details or having a sound test. __________________ Early Adopting So You Don’t Have To.

07-06-2007, 09:13 PM	#4 (permalink)
Derb Actor Join Date: Aug 2003 Location: Canada	Voted Lossless Dolby TrueHD 5.1 24bit/48khz @ 3.4mbps (ABR) Lossy dts is nice, but TrueHD sounds better imo. __________________ My Blu-ray Collection Time for Blu to go mainstream.

07-07-2007, 06:59 AM	#5 (permalink)
ganthc Actor Join Date: Jun 2002 Location: "Vyenna", VA	I chose THD, but I hate that you didn't put PCM down. __________________ HOOK'EM!!! UT LONGHORNS - National Champs 2005-2006!!! http://ganthc.youaremighty.com

07-07-2007, 02:22 PM	#7 (permalink)
Iguana Man Ex-BadHumor Man Join Date: May 2002 Location: New Jersey, USA	From what little I know of all this stuff, lossless 'should' be better. However, my gut tells me unless heard in a killer setup, the differences would be hard to discern. I'd love to know how you voted Ruined, but I guess I'll go with both sounding excellent. __________________ Get outside and have fun! Nacho Website Focus

07-08-2007, 01:32 PM	#10 (permalink)
mighty mint The Freshmaker! Join Date: Apr 2002 Location: In the Land of the Ice and Snow, eh!	I voted for the DTS because it looked lonely ...now in thinking about things a bit more I would need to hear both side by side to determine what sounded better to me. So, yeah, the "I would go with what sounds best" is probably a more accuarate answer than what I put on the poll. __________________ MM wishes he had a new tv to go with his new BD player. IMAX ~ another great Canadian invention!

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