How can I get digital sound working???

Tchay · **Posted:** Tue Nov 01, 2011 1:07 pm

I have not been able to get audio to work with the Envision. I have my component cable wired up and the VGA picture quality works fine.

I noticed that the component cables last 3 pins (19,20,21) are for audio some how. No matter where I put the audio L and R lines, sound will not work.

Does anyone know anything about using the component cable and getting sound???

Ashen · **Posted:** Tue Nov 01, 2011 1:33 pm

There is no audio out through the component cable digital I/O port. Just take it from the regular spots where the normal A/V hooks up.

Tchay · **Posted:** Tue Nov 01, 2011 1:52 pm

Ashen wrote:

There is no audio out through the component cable digital I/O port. Just take it from the regular spots where the normal A/V hooks up.

Thats what I thought. But the pinouts of the cable have 3 audio related pins. And on the site that explains how to mod the cable, he mentions the cable being used for digital video AND sound.

But either way, I can't get sound to work. Can I just remove the preamp? I kept trying to relocate the pins to see if that was the problem....but isn't it not even necessary to have???

Bush · **Joined:** Fri Nov 27, 2009 11:42 pm **Posts:** 1478

The GC can output digital, I know what mod you are referencing; however I think only analog would be practical anyhoo

Tchay · **Posted:** Tue Nov 01, 2011 3:47 pm

Bush wrote:

The GC can output digital, I know what mod you are referencing; however I think only analog would be practical anyhoo

huh?

my digital component is already wired up and works fine. I'm trying to the get sound working.

So, Ashen, is the on board preamp needed? I'm wondering if removing it will fix the problem and get sound back.

Bush · **Joined:** Fri Nov 27, 2009 11:42 pm **Posts:** 1478

I meant digital audio. How would you connect that to your audio amp?

Ashen · **Posted:** Tue Nov 01, 2011 4:40 pm

The pre-amp can be removed and you can wire directly to the A/V chip like in my trimming guide. If you can help it though I'd recommend keeping the preamp as I think it sounds much better with it, but that's just me.

Tchay · **Posted:** Tue Nov 01, 2011 8:00 pm

Bush wrote:

I meant digital audio. How would you connect that to your audio amp?

Well I have no idea, which is the problem. I can't get sound to work at all, I have voltage going where it needs to, and I am using a TV to test L and R audio. And NOTHING is working.

I cut very close to the preamp, cutting off some traces and tiny caps. I'm wonding if the borked preamp is somehow messing up audio. I think if anything grounds an audio line or messes with it, the sound will shut off completely. Just a theory though.

XCVG · **Posted:** Tue Nov 01, 2011 9:01 pm

http://www.gamesx.com/wiki/doku.php?id=av:nintendogcda

You need a weird chip to convert the digital audio, but it should output nice SPDIF if you build the circuit.

Tchay · **Posted:** Tue Nov 01, 2011 11:34 pm

XCVG wrote:

http://www.gamesx.com/wiki/doku.php?id=av:nintendogcda

You need a weird chip to convert the digital audio, but it should output nice SPDIF if you build the circuit.

HELLLLLLL NO

How can I get digital sound working???

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