Zero Crossing

A zero crossing is a point where the waveform crosses the zero level axis. When you perform editing operations, such as cutting, pasting, or dragging, make sure that the material is inserted at a zero crossing.

If you do not perform these operations at zero crossings, this can result in discontinuities in the wave, which are perceived as clicks or pops in the sound.

Activate Zero-Crossing on the Edit tab of the Audio Editor to make sure that the selections that you make are always adjusted so that they start and end at the nearest zero crossing.