5-6 channel GC HT

cancerkazoo · 19th January 2006, 05:43 PM

After looking at this thread, I was wondering if there is a AC3, DTS, Dolby, MP3,ect.. Decoding chip/project out there to intigrate into this. I've seen toslink-analog projects, so it would be nice if I could have all of this in one. I did a search and it didn't look as if a decode chip was out there at the time, has this changed? Any info would be great, or even a simple yes or no.

Thank you

Steve

cancerkazoo · 19th January 2006, 06:19 PM

OK, couldn't find the EDIT button, so I guess I'll reply.

Searching Google: DTS decoding chip

also didn't help. anymore ideas, or is this a proprietary design that can only be licenced by consumer product manufacturers?

EDIT:
how about something like This
or this

leadbelly · 19th January 2006, 06:44 PM

Your answer is no, there is currently no DIY HT decoder out there. Some searching on the forum might have helped you find that out. There are projects in progress, maybe something polished will come out, maybe not.

There are DIY techniques to get multiple speaker outputs, but all are analog domain, stereo source. The simplest is http://sound.westhost.com/project18.htm
You can add on circuits to embellish the effect, such as a "wide" function on the main front pair, an LF rolloff on the center channel, and preferably a better subwoofer output filter.

cancerkazoo · 19th January 2006, 06:50 PM

Thanks for the answer...
..., and i did search under DTS and DTS decode... Like i said, I got the picture that a chip wasn't out at the time of the post and wondered if anything had changed.

Nisbeth · 19th January 2006, 06:58 PM

Quote:

Originally posted by cancerkazoo
is this a proprietary design that can only be licenced by consumer product manufacturers?

Yep, the algorithms are integrated into audio DSP's sold by analog device and others. MOQ for these chips are usually 1000 pcs. as far as I know. The royalty to Dolby/DTS is a part of the price for the chip.

/U.

Spasticteapot · 20th January 2006, 02:49 AM

Your best bet is to use a dedicated PC with a 5.1 soundcard. The Soundblaster Audigy line is a good way to go.

cancerkazoo · 20th January 2006, 03:27 AM

I have an Audigy, I guess I'll use that. The reason I was wondering is so I could use the Toslink output and bypass possable noise issues in the PC, and also to be able to use the digital output of my current DVD player.

Thanks for the info.

dr f · 20th January 2006, 04:36 AM

Could you buy a cheap HT amp ( hyundai or something) and then bypass the amps so you are only using the decoder and possible the DAC's?

Just a thought

Nordic · 20th January 2006, 04:47 AM

You could look at one of these, similar performance to PC card based broducts, I would asume without the noise A PC injects...

http://www.creative.com/products/pro...6&product=9468

cancerkazoo · 20th January 2006, 12:54 PM

Thanks for the sugestion, I'll have to search "DDTS-100" on the forums/google and see what others have done. This looks promising as a stand alone unit, not requiring the PC.

19th January 2006, 05:43 PM	#1
cancerkazoo diyAudio Member Join Date: Sep 2004 Location: G.R. MI	5-6 channel GC HT After looking at this thread, I was wondering if there is a AC3, DTS, Dolby, MP3,ect.. Decoding chip/project out there to intigrate into this. I've seen toslink-analog projects, so it would be nice if I could have all of this in one. I did a search and it didn't look as if a decode chip was out there at the time, has this changed? Any info would be great, or even a simple yes or no. Thank you Steve

19th January 2006, 06:44 PM	#3
leadbelly diyAudio Member Join Date: Dec 2002 Location: Calgary, Alberta	Your answer is no, there is currently no DIY HT decoder out there. Some searching on the forum might have helped you find that out. There are projects in progress, maybe something polished will come out, maybe not. There are DIY techniques to get multiple speaker outputs, but all are analog domain, stereo source. The simplest is http://sound.westhost.com/project18.htm You can add on circuits to embellish the effect, such as a "wide" function on the main front pair, an LF rolloff on the center channel, and preferably a better subwoofer output filter. __________________ Aerodynamics are for people who can't build engines. Enzo Ferrari

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19th January 2006, 06:19 PM	#2
cancerkazoo diyAudio Member Join Date: Sep 2004 Location: G.R. MI	OK, couldn't find the EDIT button, so I guess I'll reply. Searching Google: DTS decoding chip also didn't help. anymore ideas, or is this a proprietary design that can only be licenced by consumer product manufacturers? EDIT: how about something like This or this

19th January 2006, 06:50 PM	#4
cancerkazoo diyAudio Member Join Date: Sep 2004 Location: G.R. MI	Thanks for the answer... ..., and i did search under DTS and DTS decode... Like i said, I got the picture that a chip wasn't out at the time of the post and wondered if anything had changed.

20th January 2006, 02:49 AM	#6
Spasticteapot diyAudio Member Join Date: Jan 2006 Location: Wisconsin....what did you expect?	Your best bet is to use a dedicated PC with a 5.1 soundcard. The Soundblaster Audigy line is a good way to go.

20th January 2006, 03:27 AM	#7
cancerkazoo diyAudio Member Join Date: Sep 2004 Location: G.R. MI	I have an Audigy, I guess I'll use that. The reason I was wondering is so I could use the Toslink output and bypass possable noise issues in the PC, and also to be able to use the digital output of my current DVD player. Thanks for the info.

20th January 2006, 04:36 AM	#8
dr f diyAudio Member Join Date: Jan 2006 Location: Australia	Could you buy a cheap HT amp ( hyundai or something) and then bypass the amps so you are only using the decoder and possible the DAC's? Just a thought

20th January 2006, 04:47 AM	#9
Nordic diyAudio Member Join Date: Sep 2005	You could look at one of these, similar performance to PC card based broducts, I would asume without the noise A PC injects... http://www.creative.com/products/pro...6&product=9468

20th January 2006, 12:54 PM	#10
cancerkazoo diyAudio Member Join Date: Sep 2004 Location: G.R. MI	Thanks for the sugestion, I'll have to search "DDTS-100" on the forums/google and see what others have done. This looks promising as a stand alone unit, not requiring the PC.

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