Since*
4.4
Cut super frequencies.
The filter accepts the following options:
- cutoff
- 
               Set cutoff frequency in Hertz. Allowed range is 20000 to 192000. Default value is 20000. 
- order
- 
               Set filter order. Available values are from 3 to 20. Default value is 10. 
- level
- 
               Set input gain level. Allowed range is from 0 to 1. Default value is 1. 
Commands
This filter supports the all above options as commands.