Bass (guitar) signal spilt + combine
I have been thinking about a project that I would like to try. The idea is that I would like to be able to take the signal from my bass guitar and split it in two (configurable how much signal in each, but the sum should be 100%), apply an effect to one of the lines and then combining the two signals again having only applied the effect to some of the signal while carrying the clean signal through. This way I could apply e.g. distortion to only 20% of the signal.
I thought that I could control the volume simply by putting an resistor in the signal line, but this gave quite some noise. This is my first attempt at building electronics for instruments, but have some experience with electronics in general.
Hope you can help me with a couple of questions:
1) Shouldn't you be able to lower the signal simply by resistors? Should you use any specific resistors for audio?
2) Is it possible to recombine two audio signals and can you just put the wires together?