DIY DTS decoder

[Da5id4Vz]

From the ATSC website:

http://www.atsc.org/standards/a_52a.pdf

Not a bad read at 140 pages, shouldnt be too tough to produce as C++ (but dont waight for me to do it)

The Errata Listings from the Dolby web site:

http://www.dolby.com/tech/ATSC_err.pdf

Note: errata seem to predate the ATSC listing and are therefore likely to be included in the document.

[rfbrw]

Originally posted by Schaef



Uhm, unless you know the source, DTS is NOT freely available.

http://webapp.etsi.org/action%5CPU/2...14v010201p.pdf

[Da5id4Vz]

We'll try to post some of our research here (censored of course).

Pierre Watts

The bane of academics, and great resume material too.

Perhaps more importantly, depending on where you go with it, this sounds like it could also make a good AES journal article.

[Schaef]

Originally posted by rfbrw



http://webapp.etsi.org/action%5CPU/2...14v010201p.pdf

Very cool, thank you! Now, to find time to read it!

[rfbrw]

Originally posted by Schaef



Very cool, thank you! Now, to find time to read it!

You should be aware it is not quite complete.

ray.

[A 8]

While it is possible to get 6 individual compressed AC3/DTS datastreams, I have not seen any chips that put out 6 decompressed datastreams.

Not sure what you want to say with this but I would say all decoders do that...(unless you refer to spdif) that's what their job is. OK, you don't get 6 individual streams you get 3 pairs of decompressed datastreams, the lr clock to identify each one and the bit clock needed. Just as the signals that feeds any other PCM DAC chip.

If you want single streams as in a DIT you can add the AKM4101
8 ch DIT

I think it would be easier to get a commercial product and re-build it, besides getting usable digital audio data you also get timing adjustments and the dd or dts sonic "stamps" right.

I've managed to extract DD and DTS decompressed pcm data from the Motorola DSP56362 and Analog devices Melody 32bit processor.

The zoran would give you the same thing.
BTW I think zoran is used in Toshiba dvd players. Pioneer uses motorola and Denon uses analog devices melody.
I think you can get a new player that includes these for around $500.

[Da5id4Vz]

I stumbled across this today while I was avoiding work:

The sound blaster Extigy claims to have a stand alone function where it will decode DTS w/ out setup from a computer.

http://www.soundblaster.com/products...asp#easeofuse2

[tiroth]

AFAIK the extigy only does DD. If it can do DTS, let me know, because I have one at home. I use it mostly for digital I/O.

[Da5id4Vz]

OOPS!

Those achronym things always mess me up.

Hope no one ran out and bought one becasue I said it was so.