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Old 28th November 2006, 05:42 PM   #1
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Default DIY DTS/DD processor?

I could swear I've seen this come up on the forums, although maybe it was on another one. Has anyone tried to DIY a processor for DTS/Dolby Digital? I was talking about this the other day with my brother. There seems to be a few all-in-one chips from Cirrus and TI that may do the trick, but I'm wondering ahead of time if this will be a futile attempt. If there is a thread that exists on this subject, please give me a link. Thanks.
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Old 28th November 2006, 06:56 PM   #2
Nisbeth is offline Nisbeth  Denmark
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Plenty of threads about this I should think.

Basically, you need a license from Dolby/DTS to purchase the chips and MOQ is typically 1000 pcs. In short: Many have tried, none have suceeded....


/U.

PS: IIRC some people have build something themselves, but always starting out with the DSP-board from a scrapped DVD or receiver.
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Old 28th November 2006, 07:37 PM   #3
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Try the STA310 from ST Microelectronics.
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Old 29th November 2006, 02:30 AM   #4
gmarsh is offline gmarsh  Canada
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The Dolby AC-3 spec (as A/52) is published and available almost anywhere on the net, and there's lots of software already that can decode it. For DTS, look around for libdca / libdts... originally it was part of VideoLAN, but it's been pulled from development due to patent issues.

Both will give you a decoder that you can port to a DSP, if you're so inclined. Just you won't be able to share the DTS version.
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Old 29th November 2006, 06:13 AM   #5
steverb is offline steverb  New Zealand
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Would it be possible to use the chips out of a (old/cheap/dead) DVD 5.1 player??
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Old 9th December 2006, 02:39 AM   #6
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Quote:
Would it be possible to use the chips out of a (old/cheap/dead) DVD 5.1 player??
Possibly, if it's not a one-chip solution, which connects directly to the transport and outputs I2S, unless you can find the RAW data stream on the transport cable and send something else.
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