MX

242 Audio effects
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To use this envelope follower mode,
proceed as follows:
 In the modulation section, press the
"env" button.
 The two small "gain" controllers on the
bottom help customize the input level for
setting the envelope. The LEDs at the top
no longer show the LFO speed, but
rather indicate the set sensitivity visually.
 Usually, the sensitivity is controlled so that signal peaks activate the LEDs
more brightly. If gain is set too low, you'd have to set the knobs unnecessarily
high for the modulation targets. If input levels are too high, the behavior will
not be noticeable. Additionally, the problem of overmodulation arises when the
detector circuitry of the envelope follower leads to inaccurate tracking as a
result of saturation. This tracking is also influenced by the following
parameters:
 "Speed left & right" controller: These set the LFO speed. In "Envelope" mode,
these may be used to set the attack & release of the envelope for each
channel. This means that minimum speed settings can cause a quick increase
of the envelope to produce quick modulation access. Since attack & release
are coupled settings, quick attacks correspond to short release values. This
way, the control voltage for the filter drops more quickly than at middle or
slower settings.
 You should adapt the speed as precisely as possible to the signal. Times that
are too short can cause errors in tracking and fluctuations, while times that are
too long will miss short signal peaks. Internally, however, the detector works
semi-automatically for release time, so that the setting is less critical than with
a purely manual method.
 The lock symbol in the modulation section has a special meaning in envelope
mode: once active, both channels are linked together for detection so that
panning effects may be based on different controller settings, and not
because of a stereophonic input signal.