Range: 0 to 1 (default 1) Controls how much the volume will raise and lower. This value ranges between 0 (minimum volume) and 1 (maximum volume). If set to its minimum, the volume will not oscillate at all.
Range: 0 to 1 (default 0.5) Controls how long during one volume oscillation the effect will be active, specifically what percentage between 0 (0%) and 1 (100%).
Range: 0.1 to 20 (default 5) Sets how often the effect will oscillate the volume. Measured in Hz.