ARpiCADE Forums

Iv installed usb sound amp after getting 3.5 to rca to work on a sega blast city to see if this would be a good way for people without sega blast cities to get sound.

The sound menu in service sees the usb I can select it but when I exit it doesnt save that I selected the usb.

So I gather its a config file I need to edit could someone tell me were to edit audio devices.

If the device is just getting power from USB and takes the RCA input you mentioned in another thread it shouldn't need any setting up. If it is effectively a USB soundcard (taking both power and audio over USB) you will need to tell the Pi to use it using amixer (a comand line program), that can be done by adding a line to /boot/run.sh.

You will need to know the ID of the USB device you're wanting to use as the command will look like:

amixer cset numid=3 1

excepting the 3 and 1 maybe/will be different for your device.

I hope that helps