Boost subwoofer frequencies.

The filter accepts the following options:

dry

Set dry gain, how much of original signal is kept. Allowed range is from 0 to 1. Default value is 1.0.

wet

Set wet gain, how much of filtered signal is kept. Allowed range is from 0 to 1. Default value is 1.0.

boost

Set max boost factor. Allowed range is from 1 to 12. Default value is 2.

decay

Set delay line decay gain value. Allowed range is from 0 to 1. Default value is 0.0.

feedback

Set delay line feedback gain value. Allowed range is from 0 to 1. Default value is 0.9.

cutoff

Set cutoff frequency in Hertz. Allowed range is 50 to 900. Default value is 100.

slope

Set slope amount for cutoff frequency. Allowed range is 0.0001 to 1. Default value is 0.5.

delay

Set delay. Allowed range is from 1 to 100. Default value is 20.

channels

Set the channels to process. Default value is all available.