Arduino web controlled audio mixer.

Forum 2005-2010 (read only) Hardware Interfacing
#1

I had an idea last night that I could use an arduino as an audio mixer, and instead of using analog potentiometers, I could use digital potentiometers and control them via the web.

Out of my mixer I need two outputs, one to go to the speakers and one to go to my headphones. But on the headphones, I want to be able to select which audio channels I want to listen to. Is there some sort of digital switch I could use to turn the audio channels on and off?

Thanks.

#2

Just like there are digitally controlled potentiometer ICs, there's also multiplexing ICs that allow you to route one input to several outputs, or vice-versa; a couple of these would probably work, and people here have used them to multiplex multiple potentiometers and sensors into the arduino's analog i/o - so it should work for your needs, too.

#3

I looked at the 4066 data sheet, and that looks like it will work perfectly for what I need.

I also need a switch like the 4066 but that is SPDT. Do you know of any that will work?

#4

For SPST I will use the 4066 and for SPDT I will use MAX383.

I'm gonna go order my parts and an arduino. I can't wait to play with an arduino! I've never used one before.

#5