Page 22 of the Dune 2 manual refers to a "modulation envelope ("Mod Env")", in addition to the "amplitude envelope" and "filter envelope". The relevant text is quoted below:
The modulation envelope ("Mod Env") can be freely assigned to any sound parameter, and is typically used to change the pitch progression.
Where exactly is this Mod Env section in the UI? I see the other two, but no modulation envelope.
Thanks!