DIY Dolby decoders (with optical and coax inputs)

Jeeves_Moseley · 31st October 2001, 08:53 PM

does any one here know where I could find the schematics for a 5.1 Dolby 5.1 decoder that accepts optical and coax inputs? I would like to build one for use in my home theater system since the amps are hand built. I'd like to keep with the style I'm working with. Thanks again. Please e-mail me if you have any ideas or questions.

The_doc_2@hotmail.com
ICQ 48744567

Schaef · 1st November 2001, 12:59 PM

This was covered somewhere around a year ago, and the general consensus seemed to be that you'll find it difficult. Unless you've got a license from Dolby Labs, places won't sell you a dedicated chip to do the decode for you. If you're looking to code it yourself on a DSP, the format is given somewhere on the net. Look for stuff relating to HDTV and AC-3, and you should be able to find a document that explains everything you need to know. (I had a copy of it for a while, but I think I threw it out in a cleaning, deciding I wasn't really going to do anything with it)

Sorry for the bad news. (Maybe you'll get lucky and things have changed since then, and someone will have some better info)

1st November 2001, 12:59 PM	#2
Schaef diyAudio Member Join Date: Jan 2001 Location: Cuyahoga Falls, OH	Good Luck This was covered somewhere around a year ago, and the general consensus seemed to be that you'll find it difficult. Unless you've got a license from Dolby Labs, places won't sell you a dedicated chip to do the decode for you. If you're looking to code it yourself on a DSP, the format is given somewhere on the net. Look for stuff relating to HDTV and AC-3, and you should be able to find a document that explains everything you need to know. (I had a copy of it for a while, but I think I threw it out in a cleaning, deciding I wasn't really going to do anything with it) Sorry for the bad news. (Maybe you'll get lucky and things have changed since then, and someone will have some better info)

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31st October 2001, 08:53 PM	#1
Jeeves_Moseley diyAudio Member Join Date: Oct 2001	does any one here know where I could find the schematics for a 5.1 Dolby 5.1 decoder that accepts optical and coax inputs? I would like to build one for use in my home theater system since the amps are hand built. I'd like to keep with the style I'm working with. Thanks again. Please e-mail me if you have any ideas or questions. The_doc_2@hotmail.com ICQ 48744567

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