Hello everyone !

I have a RME Fireface UC (2 MIC inputs, 2 INSTR inputs), the 2 microphones are used, the instrument input 1 takes an acoustic guitar and I want to know if the input instrument 2 can take an electric guitar and a bass at the same time.

I go through Ableton Live and has a midi pedal footswitch FCB1010, so I can easily program a button to activate the electric guitar track when the bass is not active, and the opposite.

The instruments must absolutely stay connected because I am alone to manage guitar ac / elec bass keyboard and drum machine all via loops so no time to plugin/out.

Can a pedal like this https://www.thomann.de/fr/lead_foot_aby.htm do the trick, always leaving it on Y and using my midi pedal to turn on / off the tracks?

Thank you for your help.

 

You just need this:
https://electronics.stackexchange.c...vely-mixing-two-or-perhaps-more-audio-signals

Edit: Ok I thought you wanted to mix line levels, then you could have gone with that totally simple circuit with only two 4.7k resistors.
I guess that doesnt work with high-z sources? Or does it? Anyone more into circuits than me?

But that little foot switch should do the trick as you described it.

 

Last edited: Mar 14, 2019

Yes, the lead foot aby should do the trick.
You will have to adapt output levels to the instrument input capacity, but it should work.

 

You have 8 analog in. Not just 4.
Edit: Nevermind. Missunderstood you. Move along.