What is correlation audio?
A goniometer is often included in analog audio equipment to display a Lissajous figure which shows the amount of stereo (that is, phase differences) in a dual-channel signal. It allows the sound technician to adjust for optimal stereo and determine the makeup of errors such as an inverted signal.
What is correlation in mastering?
Correlation Meter: Displays the phase relationship of a stereo signal. ... Correlation values lower than 0 indicate that out-of-phase material is present, which can lead to phase cancelations if the stereo signal is combined into a monaural signal.