Apple Express Audio Out Through USB?

[The Monkey]

I want to shoot the audio out of the USB port on my Apple Express instead of the optical out. You tell me how.

And none of this "it can't be done" nonsense.

Thank you for your assistance.

[EdipisReks]

how good are you at firmware programming? you might have to design and build a couple circuits, too, depending on what connections are already there.

[The Monkey]

how good are you at firmware programming?

I'm the BEST.


No, of course not. I have no idea about any of that stuff. I was thinking more along the lines of using some jumpers and all would be good.

So not an easy project in other words, eh?

[EdipisReks]

as i think has been described by others here, previously, you would have to get some sort of optical to USB adapter.

[grawk]

The real way to do it is to crack open the express, and replace the audio daughterboard

[EdipisReks]

you could do that, too.

[grawk]

The only device I know of that will feed optical to a usb dac is a computer

[The Monkey]

The only device I know of that will feed optical to a usb dac is a computer

Agree, that's what my research indicated.

[cetoole]

The real way to do it is to crack open the express, and replace the audio daughterboard

Yes, this has a decent shot of working, cutting the existing traces to the USB jack, removing the audio board, and wiring the usb pins which had been feeding the audio board to the USB jack, in a manner which doesnt completely screw with the USB wiring standards. We know that at least older versions used the PCM2705 for the audio board, so it would be fairly simple on these, but I have heard, though unsupported by photos or anything, that the current expresses use something else. Also, since the thing is sonically welded together, you would have to recase it afterwards, instead of just closing it back up. Well, maybe duct tape would work.