Convolution Effect using pconvolve opcode by Matt Ingalls

The code for this effect is based on code by Matt Ingalls found in the Csound Manual; please see the manual for more information regarding pconvolve.

Supports mono or stereo Impulse Response files.

changed by Menno Knevel

version 1.2, February 2018
- added warning when no or invalid impulse sound is used
- if no or incorrect impulse, then the effect is bypassed

version 1.1, September 2017
- latest GUI (Blue 2.7.0 or greater)

version 1, februari 2017
- Mix wet/dry fader can be moved while playing
- added wet volume to be set in order to prevent distortion of Impulse Response file
- added 3 way equalizer to spice up the Impulse Response file
- added Early Reflection