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25 PROTON User Manual
10.
ASR Envelope Generators
The Proton has two ASR envelope generators, which can be
individually triggered from the In patchbay. Because the buttons
are shared between the two the shift button in the LFO section
should be used to toggle between the two. Buttons light up in red
when they are selected for ASR 1, white for ASR 2.
10.1 Attack
Each ASR envelope generator has an attack time which is
adjustable between 0 ms when the control is fully CCW and 8 s
when it is fully CW.
10.2 Release
Each ASR envelope generator has a release time which is
adjustable between 0 ms when the control is fully CCW and 31 s
when it is fully CW.
10.3 Loop
When loop is selected the relevant ASR envelope generator will
repeat its attack/release cycle for as long as a gate is present at
its input. If sustain is selected then the loop function will not
work, as the envelope will sustain for as long as the gate is present
before releasing.
10.4 Bounce
When bounce is selected the relevant ASR envelope generator will
go through its attack/release cycle, then reverse it so that release
becomes attack and attack release for as long as a gate is present
at its input.
10.5 Sustain
Selecting sustain adds a sustain element to the envelope curve.
10.6 Invert
Selecting invert causes the envelope curve to change from a
positive going 0 V to + 10 V to 0 V to – 10 V.
10.7 Reverse
Selecting reverse turns the release into attack and attack into
release on the selected ASR.
10.8 Retrigger
When retrigger is selected the relevant ASR envelope generator
will start a new cycle every time it receives a new gate.
All of the buttons can be used in any combination. Please note
that some button combinations do not necessarily give the desired
affect, so it is worth checking which combinations are best for
your work.
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