SPDIF TO 5.1 CONVERTER

udhay_cit · 15th April 2011, 02:58 PM

Hi i am not familiar with audio processors. I want to know the answer for some questions....

Can i design my own SPDIF to 5.1 audio converter with only basic electronics knowledge...?

Is there any need of DSP processor(and program) to design the converter...?

Anybody have the experience with SPDIF to 5.1 converter.....?

I found lot of circuit design for SPDIF to STEREO converter, but i can not find a reliable circuit for 5.1 converter. Is it possible to convert the SPDIF to 5.1 Analog....?

Is it too complicated?

If you have any working circuit then please guide me to design my own converter.....

Thanks & regards
Udhay

SoNic_real_one · 15th April 2011, 08:38 PM

Over the SPDIF you have only 2 practical ways to send 5.1 audio: DolbyDigital or DTS. Those are proprietary, compressed formats. There are also other options, used more in the PC "world", like AAC 5.1 or MPEG 5.1...
This is because SPDIF bandwidth cannot support uncompressed 5.1, only 2.0...

There are circuits that have incorporated those decoders and in their price there is included a license fee. Example. Is that accesible to a DIY? I would say NO because are usually in 120-144 pin capsules (require external memory connection).

15th April 2011, 02:58 PM	#1
udhay_cit diyAudio Member Join Date: Feb 2008	SPDIF TO 5.1 CONVERTER Hi i am not familiar with audio processors. I want to know the answer for some questions.... Can i design my own SPDIF to 5.1 audio converter with only basic electronics knowledge...? Is there any need of DSP processor(and program) to design the converter...? Anybody have the experience with SPDIF to 5.1 converter.....? I found lot of circuit design for SPDIF to STEREO converter, but i can not find a reliable circuit for 5.1 converter. Is it possible to convert the SPDIF to 5.1 Analog....? Is it too complicated? If you have any working circuit then please guide me to design my own converter..... Thanks & regards Udhay

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15th April 2011, 08:38 PM	#2
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	Over the SPDIF you have only 2 practical ways to send 5.1 audio: DolbyDigital or DTS. Those are proprietary, compressed formats. There are also other options, used more in the PC "world", like AAC 5.1 or MPEG 5.1... This is because SPDIF bandwidth cannot support uncompressed 5.1, only 2.0... There are circuits that have incorporated those decoders and in their price there is included a license fee. Example. Is that accesible to a DIY? I would say NO because are usually in 120-144 pin capsules (require external memory connection).

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