I need to switch multiple audio signals to multiple locations ie (A to B), (A to C) or (A to B & C) plus (D to E), (D to F) or (D to E & F) so basically multiple inputs which get switched to either 1 of 2 outputs, neither or both.
Just wondering what technique people would use to do this..... The actual switching logic is a high pin from the arduino, a low pin would be off so basically A comes in and if pin 10 is high it goes to B and if pin 11 is high it also goes to C, either being low will turn that output off. I would prefer to keep the audio signals isolated from the data board so would prefer not to connect the audio ground to the data board's ground and then switch the signal pins using transistors but would this be best? What do people think..... This is effectively like a computerised source switch for an amplifier.
The actual signal is an audio signal either un-amplified, line level or headphone level (I will not know before hand).