Tremolo modulates the level of the signal with a sine wave.
Modulation Speed and Depth can be adjusted.
The Stereo button can be used to create a stereo effect by modulating the right channel with a phase shifted version of the sine wave.
If the Vintage button is checked the characteristics of a vintage analog tremolo effect are emulated. The Tremolo effect can also be used as an 'analog warmer' (set Depth to zero).