Hello,
I am currently working on a project in which I will be connecting the arduino uno to a pre-amp I have constructed. The preamp is an XLR input that enters an anti-aliasing filter and then goes through the arduino to be processed.
I will programme the arduino to add distortion to the filter that will be controlled with an external analogue potentiometer acting as a dial.
I have attached my code, however I am having issues with coding the local distortion in the "updateAudio" section.
The section is marked with "\add local distortion"
If anyone can help or give some guidance that would be great!
Thanks 
Help_.ino (5.5 KB)