Stereo Width Experiments
I am getting interested in building a hardware stereo image widener circuit. I have seen a few ideas floating around based on the Middle(M) +Side(S) technique. The basic premise can be summarized into the following equations:
Encoding M and S
Middle = L+R
Side = L-R
Middle Circuit
Translating that into basic op-amp circuits, the Middle signal could be created with a summing amplifier.