flanger [delay depth regen width speed shape phase interp]

delay

Base delay in milliseconds. The valid range is 0 to 30. Defaults to 0.

depth

Added swept delay in milliseconds. The valid range is 0 to 10. Defaults to 2.

regen

Percentage regeneration (delayed signal feedback). The valid range is -95 to 95. Defaults to 0.

width

Percentage of delayed signal mixed with original. The valid range is 0 to 100. Defaults to 71.

speed

Sweeps per second (Hz). The valid range is 0.1 to 10. Defaults to 0.5.

shape

Swept wave shape. This can be either sine or triangle. Defaults to sine.

phase

Swept wave percentage phase-shift for multi-channel (e.g. stereo). The valid range is 0 to 100. 0 = 100 = same phase on each channel. Defaults to 25.

interp

Digital delay-line interpolation. This can be either linear or quadratic. Defaults to linear.