http://www.next-gen.biz/index.php?option=com_content&task=view&id=9895&Itemid=59

By Kris Graft

 Next week, Sony will be releasing a firmware update for PlayStation 3, which will enhance the audio in Blu-ray playback and give users access to a new PlayStation Store.  The firmware 2.3 update will add DTS-HD Master Audio and DTS-HD High Resolution Audio to the system, upping the sound quality of Blu-ray movies, Sony Computer Entertainment America said Thursday.

Sony said the update would provide the "complete high-definition Blu-ray movie experience," with sound that is "bit for bit identical to the original studio master."

DTS' Master Audio delivers audio at a variable rate of 24.5 Mbps on Blu-ray disc. The technology also offers 7.1 audio channels at 96k sampling frequency/24 bit depths, according to Sony.

The DTS-HD High Resolution Audio codec lets creators make content using less disc space than DTS-HD Master Audio.

"DTS-HD High Resolution Audio 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 resolution, thereby producing outstanding sound quality," Sony explained.

As recently announced, Sony will also be delivering a revamped PlayStation Store, which will live natively on the PS3 instead of being an integrated online storefront. Sony said the change will let users access content more swiftly and easily.

 

"96k sampling frequency"

Sorry but all this DTS uncompressed etc. Audio is Bullshit. Nobody will hear a difference.
If I remember signal theory correctly you can recreate every frequency in a signal by sampling a wave twice often as the frequency. That is the 44000 Sampling rate of a CD enable it to replicate every frequency up to 22000 Hz.

So if they sample 96000 times they will be able to recreate frequencies up to 48000 HZ. Since a human ear maxes out at 18-20k (depending on age) what is this good for? Bats? Dogs?

The biggest advantage seems to be that you can sell EVERYTHING to audiophiles. There is no audible difference between 256mb mp3s and DTS (for stereo). For 7.1 you need 4times as many channels of course.

Well, it's about time. I'll see if it makes any difference with the only blu-ray title I own...
Kyros, isn't it about details within the audible frequency range, not hearing high frequencies that obviously no one can hear? (compression doesn't only affect frequency response...but I guess DTS could hardly be called "compressed")

That being said though, I don't really expect to hear a difference between the DTS core track and the MA track on my X-men 3 disc.

"Kyros, isn't it about details within the audible frequency range, not hearing high frequencies that obviously no one can hear?"

There are two parts of a signal important for hearing, the frequencies and the amplitude of the frequencies.

Higher sampling rate == more frequencies in the signal can be recreated
higher bit rate for saving the sampling points == the amplitude of the frequencies can be replicated more exact.

So a sampling rate above 44k is bullshit.
And a bit rate above 16bit is also pretty useless because this results in a Signal-To-Noise ratio of 96db which is also more than the human ear can hear.

For Stereo CD quality is perfect. No normal human creature will hear differences if you go higher. If you want better sound buy a better sound system.