The Roland TR-03 has an 'Envelope' Parameter. I know many different kinds of Envelopes exist which are made to adjust different parameters:
- Low-/High-Pass Filter
Question 1: What kind of 'Envelope' is it in the TR-03?
At second, a classic envelope has 4 Phases: Attack, Decay, Sustain and Release (ADSR). Other Machines provide 4 knobs to adjust these 4 Phases. One for each Phase. But on the TR-03 there is only 1 knob for the Envelope.
Question 2: What does the Envelope knob do on the TR-03?
Owner´s Manual is located here, but it doesn´t answer my questions: https://www.roland.com/global/support/by_product/tb-03/owners_manuals/