The only difference is in the sustain stage: If the external input is still high in the sustain stage the envelope
will be held until the gate falls low again and will then proceed to the release stage. If you trigger the
envelope with an external trigger the SUSTAIN knob simply determines the level that the envelope falls to
between the decay and release stages.
Fig. 3 The difference between linear and logarithmic ADSR output signals, normal and inverted.
KOMA Elektronik RH301 – Rhythm Workstation / Utility Tool
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