Dolby TrueHD - Audio for Next-Generation DVDs

CowboyBebop

CowboyBebop

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http://investor.dolby.com/ReleaseDetail.cfm?ReleaseID=182983


LAS VEGAS, Jan 03, 2006 (BUSINESS WIRE) -- Illustrating the latest in surround sound technology, Dolby Laboratories (NYSE:DLB) will showcase its premier multichannel sound technologies at the 2006 International Consumer Electronics Show (CES), January 5-8, 2006, at the Las Vegas Convention Center (South Hall 1, booth 20925).

Dolby will offer a sneak preview of Dolby(R) TrueHD technology, which offers up to 7.1 discrete channels of lossless audio for next-generation optical media, bringing audio to home theater that is bit-for-bit identical to original studio masters. This demonstration will also push Dolby TrueHD to its theoretical limit of 14-channel surround sound, giving attendees a glimpse of what could previously only be heard in Dolby's San Francisco sound laboratory.
 
CowboyBebop said:
bringing audio to home theater that is bit-for-bit identical to original studio masters
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I saw this on tv the other day - it's about damn time.
 
I assume you need compatible recievers to use it though?

Or will it just be kickass right from the start? :beh:
 
Actually, I heard that Blu-Ray and HD-DVD players coming out can decode a DD+ and DTS-HD signal (not all, but most) and then pass that signal through RCA pre outs to a receivers existing analog inputs (so receivers that have a 7.1 - 8 channel input does not have to be upgraded).
 
slick said:
Actually, I heard that Blu-Ray and HD-DVD players coming out can decode a DD+ and DTS-HD signal (not all, but most) and then pass that signal through RCA pre outs to a receivers existing analog inputs (so receivers that have a 7.1 - 8 channel input does not have to be upgraded).
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You mean over the analog 5.1 outputs......OOoooo that would be an interesting compromise I would have not thought of till a person could get a new reciever with built in decoding of the new formats :)
 
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I found it interesting that Dolby's page states TrueHD is a mandatory format for HD-DVD but not for Blu-ray. Considering Blu-ray's space advantage I thought it would be the other way around. Strange but true!
 
Trunks0 said:
You mean over the analog 5.1 outputs......OOoooo that would be an interesting compromise
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That wouldn't be a compromise vs a digital connection assuming the analogue outputs are of good quality. Line interferance is neglegable over analogue and the signal has to be converted to analogue eventually so it shouldn't matter.
 
Dolby TrueHD was mandatory for HD-DVD, but was also included with Blu-Ray, so they'll both offer it.

The first generation players will only offer decoding of 2-channel Dolby TrueHD, output via analog. When the new HDMI spec is finalized, 8-channel Dolby TrueHD will be able to be passed over it. Of course, you're receiver wil have to be able to decode it.
 
gmontem said:
I found it interesting that Dolby's page states TrueHD is a mandatory format for HD-DVD but not for Blu-ray. Considering Blu-ray's space advantage I thought it would be the other way around. Strange but true!
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really ? Wow HD DVD is seemingly getting better and better in my eyes
 
sharangad said:
Yeah but DTS HD is the default format for Blu-Ray.
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DTS has always been greater than Dolby.

No matter how you look at things Blu-ray will always have more quality cause it has ~2x the capacity of HD DVD. :D
 
Oui said:
No matter how you look at things Blu-ray will always have more quality cause it has ~2x the capacity of HD DVD. :D
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Only if they choose to use the space. Some studio's have said they are not using all the space the bigger blu-ray disc's can offer.

Also Blu-Ray I don't think has "choosen" an audio standard yet. Meaning its fully open to DTS-HD,Dolby TrueHD,DolbyDigital,DTS etc. With that said an HD-DVD disc's could use DTS-HD if the studio wanted to and there was the space needed.
 
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Oui said:
DTS has always been greater than Dolby.

No matter how you look at things Blu-ray will always have more quality cause it has ~2x the capacity of HD DVD. :D
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well that's interesting because I hear the 1st round of blueray will be 25gb discs. So while the hddvd disc hybrids will contain a 15g/30g config the 30gb should be enough to include DTS if it was wanted. :bleh: maybe
 
Dolby Digital.

I believe for a DVD to be compliant it must have at least one Dolby Digital track (regardless of the number of channels). Even for a DTS-version of a DVD you will find a 2-channel DD track.
 
CowboyBebop said:
well that's interesting because I hear the 1st round of blueray will be 25gb discs. So while the hddvd disc hybrids will contain a 15g/30g config the 30gb should be enough to include DTS if it was wanted. :bleh: maybe
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some movies will use the 25gb discs because they do not require the extra space. Not all Blu-Ray movie discs will be 25gb. I think a fairly good comparison there would be how many first gen DVDs where single layer 4.5Gb disc's and progressed later on to the duel layer media.
 
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gmontem said:
I believe for a DVD to be compliant it must have at least one Dolby Digital track (regardless of the number of channels). Even for a DTS-version of a DVD you will find a 2-channel DD track.
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So basically whats happening now is that dvd master-ers are doing the minimum to meet the requirement, then in reality doing whatever they want after that, according to this line of thought.

Dts isnt "standard", but they put a full track on there. In fact, if the requirement for Dolby Digital wasnt there, they wouldnt have to waste the space that 2 channel crap takes up. In fact, any decent budget dvd player now can take a full 5.1 or 7.1 stream and downmix to 2 channel on the fly. So whats the point of having 2 channel tracks on disc? They're just wasting disc space from this point of view, yet they are still required due to "standards".

Now go back and think about the differences in audio standards between Blu-Ray and HD-DVD...
 
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