Sylvia Massy emphasizes the importance of aligning the phase between the top and bottom snare mics for a full snare sound. The phase inversion typically occurs because when the snare is hit, the top and bottom heads move in opposite directions relative to their respective mics – the top head moves away from the top mic, while the bottom head moves towards the bottom mic. This opposing movement creates a phase discrepancy, often resulting in a thin, papery snare sound when both mics are mixed. To fix this, Massey flips the phase on the bottom mic, thus restoring the fullness and tone of the drum. She points out that checking and correcting phase between drum mics (snare mics, overheads against the snare, etc.) is an essential step at the beginning of every mix.
