DTS Audio CDs Options

[duchski2]

I searched the web for a definitive answer but still could not find definitive specs for what is called DTS CD i.e. CD encoded with audio in DTS format.

As I understand DTS files are "encapsulated" in wav format so to the CD player thay look like "normal" wav files i.e. 16 bit, 44.1khz etc but then inside the fake wav file is a DTS encoded audio info. Now, what are the specs for the actual DTS stream inside the "wav" file i.e what DTS bit rates, sampling freq. etc are allowed?

[GeSomeone]

Ok. What about the sampling freq, can DTS-CD contain 48,000 Hz files?

It could depend on the (DTS) encoder, but so far I was only able to encode 44.1kHz input files on DTS-CD. When trying 48kHz the playback speed was totally wrong.

The PCM "noise" is stereo 44.1 kHz, but when decoded, the DTS stream will be 5.1-channel 48 kHz. [..] I don't know how this would work for DTS 96/24 streams though, whose bitrates are probably higher.

DTS(WAV) files can be either either 44.1 or 48kHz. AFAIK the DTS-CD (44.1kHz) that can be burned on a CD, can only contain 44.1 kHz payload (see above). You can use 24 bit input however (as you can for making mp3's). The 96/24 extension can only be used in a full bit rate, 1536 kbps, stream and it will have a 48kHz core for backwards compatibility.

BTW the channel layout does not necessarily have to be 5.1. It could also be 5.0, 4.0 or even 2.0 although the last one is hardly ever used (I'm not sure about 4.1).

[luigiagostini]

Hi,

I produce 3D audio disc that you can play on a regular 7.1 home theater system if you use a switcher for Center and LFE channels.
Two more satellites are needed, as Lsh and Rsh, and you must use Lh and Rh.

I can assure you that you can store and playback eight channels at 24 bit, 96 kHz using DTS HD Master Audio and HDMI 1,4 to connect the player and the A/V receiver.
In my opinion this is the best configuration in terms of quality.

My two cents...

Ciao, Luigi