In sonicpi the cutoff value is a midi value from 0 to 131.
MIDI note representing the highest frequencies allowed to be present in the sound. A low value like 30 makes the sound round and dull, a high value like 100 makes the sound buzzy and crispy. Default: 100 Must be zero or greater,must be a value less than 131 May be changed whilst playing [Has slide options to shape changes](#slide)
Is there a way to translate this midi value on khz value ? 30 midi value represents **** hz value ?
Is there a parameter to control the slope of a filter ?
Thanks for your help