stereo pan pot

When making a sound recording using multi-microphone techniques the signal picked up by each microphone can be correctly positioned in the stereo sound stage by `panning`. For example, the sig-nal from a centrally placed microphone would be fed equally to both left- and right channels, a signal from a micro-phone located at the left of the sound stage would be fed only to the left chan-nel and a signal from a microphone lo-cated at the right would be fed only to the right channel. Signals from micro-phones located between these positions would be fed to the left- and right chan-nels in the appropriate proportions.