itroitnyah wrote:So you solo'd the stereo, muting the mono so that anything that is panned can be heard, but not anything that is centered? I've never heard of that. I must be really confused right now.
But if that is the case, it may be because your bass is centered, so what you're hearing is any effect that is panned or widened on the basses insert on the mixer. That may have some delay attached to it, making it sound somewhat out of beat.
Mid - Side in this case refers to the phasing in the track. The mid signal is the part of the waveform that is identical to both tracks (left and right tracks) at the same time. The side is the part of the waveform that is different from the both tracks (left and right).
Its not about whats panned where although that may possibly be part of the problem.
Now OP, what is it that's creating the 'side' signal? Is it reverb/delay effect?
Also make a copy with the just the mid signal and another as a whole, I might get a better understanding if I hear it those ways.