Further cementing its reputation for being the most capable
and versatile Blu-ray Disc player on the market, an upcoming PlayStation 3
firmware update will introduce DTS-HD Master Audio and DTS-HD High Resolution
Audio support to the console.
“PS3 was designed to enable delivery of new and improved
technologies like DTS-HD Master Audio,” said Teiji Yutaka, SVP of Software
Platform Development at SCE. “So we are delighted to be able to offer this
capability to PS3 users.”
Like PCM and Dolby TrueHD, DTS-HD MA can deliver audio
presentation that are bit-for-bit identical to the original studio master.
According to the press release, DTS-HD MA has the capacity to deliver audio at
the incredibly high variable rate of 24.5 Mbps on Blu-ray disc, a rate
significantly higher than standard DVDs. DTS-HD MA also offers 7.1 audio
channels at 96k sampling frequency/24 bit depths.
Although DTS-HD MA isn’t as commonly used in high-definition
movies as Dolby’s TrueHD scheme, the added support from PlayStation 3 could
change things. Fox Home Entertainment has been one of the strongest supporters
of the DTS format, releasing such titles as Live
Free or Die Hard and Juno with
DTS-HD MA 5.1 soundtracks.
Should 50 GB be insufficient room for a lossless audio
track, the option exists for DTS-HD High Resolution Audio lossy track which
streams audio at a high constant bit rate of 6.0 Mbps on Blu-ray discs, and is
also capable of up to 7.1 audio channels at 96k sampling frequency/24 bit depth
“We are extremely pleased that Sony Computer Entertainment is
adding the full spectrum premium DTS-HD Master Audio codec into the PS3 so that
more than 10 million owners of one of the best selling computer entertainment
systems can have the best sounding, most efficient and flexible audio
technology available as well,” said Brian Towne, SVP and GM Consumer Division
at DTS. “DTS-HD Master Audio is fast becoming the must-have feature for high
definition entertainment enthusiasts.”
The PS3 firmware, numbered version 2.30, is slated for
release on April 15. The new firmware will also enable access to a newly
renovated PlayStation Store.
quote: That's 550 bucks.
quote: Take 300, the PCM track is 48Hz 16bit, the bit for bit equivilent TrueHD track is 48Hz 20bit.
quote: The end result really is bit for bit, otherwise it could not possibly be called a lossless compression algorythm.
quote: it still uses MPL (same thing that is used for DVD-A and your original DD tracks
quote: The situation actually seems reversed today with BD, movies such as Spiderman 3 sound much better in LPCM, than they do in TruHD.
quote: You just need a receiver with HDMI 1.0
quote: As far as I am aware, HDMI 1.1 receivers do not support multichannel LPCM at all.
quote: “We are extremely pleased that Sony Computer Entertainment is adding the full spectrum premium DTS-HD Master Audio codec into the PS3 so that more than 10 million owners of one of the best selling computer entertainment systems can have the best sounding, most efficient and flexible audio technology available as well,” said Brian Towne, SVP and GM Consumer Division at DTS. “DTS-HD Master Audio is fast becoming the must-have feature for high definition entertainment enthusiasts.”
quote: You're right about the PCM supporting higher bit depths, however with no compression what so ever you're losing precious space that could be getting utalized for other things.
quote: I do know that TrueHD requires a shadow track in order to maintain backwards compability, is that what you were thinking of?
quote: so right there you *NEED* to have at least a DD track for backwards compatibility.
quote: As you may have noticed, there are not many BD movies that have had a video bitrate higher than 30Mbps. As the max combined bitrate for video and audio is 48Mbps, this would still leave a sufficient amount of space for any extras or other audio tracks that you want to add.
quote: Currently there are very few setups that can take full advantage of lossless audio (including LMPC) out there, so right there you *NEED* to have at least a DD track for backwards compatibility.
quote: There are still many time more that only accept multichannel audio off of an optical cable than with any form of HDMI or even multi-channel analoge inputs
quote: No I meant DTS-MA, TrueHD still uses the MPL encoding system (same thing used for DD) similar to that of DVD-AUDIO.
quote: No I meant DTS-MA, TrueHD still uses the MPL encoding system (same thing used for DD) similar to that of DVD-AUDIO. DTS-MA has the core track for backwards compatibility purposes, and the extended track for the 'rest' of the sound. In the end they both THD and DTS-MA allow for backwards compatibility, its just the method in which it is achieved.
quote: Second, there will be many movies encoded in just multichannel LPCM, as neither DTS-MA or Tru-HD are required by the BD spec, they are both optional formats.
quote: Keep in mind though the DTS core track is still kept as a lossless format, your player merely downmixes the track to lossy DTS 1.5 track.
quote: only because it's compressed you can have a version of the PCM file with greater bit depth (24bit v. 16bit) and still have MORE room left over for extra's
quote: DTS-HD/MA is a much better choice than PCM.
quote: Space and bandwidth considerations (as noted in my post above) are NEVER irrelivent even on bluray. There's a reason why Sony ditched PCM in favor of TrueHD for their movies, space and bandwidth savings! With DTS-HD/MA you get similar space/bandwidth savings plus the advantage of automatic high quality backwards compatibility. You lose that with PCM/TrueHD (entirly). At least with TrueHD though, you're still saving on disc space and bandwidth.
quote: Totally irrelevant on blu-ray. An uncompressed 5.1 PCM track for a two hour film takes about 3GB of space. If you increase the bitrate to 24/96, it might go to 6gb. That's only 12% of the disc. A DD lossy track added on is something like 500mb. If video is 15-25gb, that leaves about 20gb for extras. Absolute worst case scenario, LOTR extended will need its own extras disc. Gasp!
quote: PCM subtracts nothing from the cost of the disc because a DD track still needs to be licensed for compatibility reasons.
quote: TrueHD for their movies, space and bandwidth savings!
quote: No, it isn't. It adds cost to players and receivers to support it, it adds costs to movies because studios pay licensing fees, it delays an authoring process, it causes support and decompression issues (read: this article), increases processing power requirements, and generates gads of consumer confusion. All for a totally irrelevant and negligible space savings. Congrats.
quote: There is no difference between decoding the audio to LPCM in the player or the receiver
quote: 1) PS3 being internal decoding vs bitstream isn't a problem. They are two different ways to skin a cat. Many people that spend serious $$$ on their AVR or pre/pro would prefer to use the AVR clock and avoid jitter by bitstreaming. If you don't then don't worry about it. Jitter is real but it likely 20th on list of top 20 things that affect SQ.