Would you please help confirm my findings?
@pkane, please note and comment.
I found that the distort app does not perform distortion setup correctly. For example, I give -45db for second harmonic, I get -55db for second harmonic. I give -103db for 3rd harmonic, and I got -115db.
I took a 1KHz tone and put it though the app. -45db 2nd harmonic, -103db third harmonic, -99 forth harmonic.
Here is the GUI of the distort app:
View attachment 160825
When I use deltawave to compare the distort app created file with original 1khz file, I see the issues. As you can see, all are like 10db or more lower than requested.
View attachment 160824