When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. MASTERING WEEK: Using a Mid/Side EQ can be very useful in the mastering process. Basically it ...

The well-known practice of individually applying EQ to the mid and side channels is called mid-side EQing. EQs that use the mid-side (M/S) mode convert a stereo sound into mono and stereo channels.