Phase refers to the position of a waveform at a specific point in time relative to a reference waveform. The phase of a waveform is typically measured in degrees, with one full cycle of a waveform representing 360 degrees.
In sound synthesis, the waveform phase can be manipulated to create different tonal colors and textures.
For example, if the phase of a waveform is shifted slightly relative to another waveform, they can create a phasing effect that produces a sweeping or swirling sound. If the phase of a waveform is shifted at a constant rate over time, it can create a chorusing effect that thickens and enriches the sound.