Future Retro XS - Manual (Page 33)

ANALOG CONTROLS
ACCENT
The accent section determines how Velocity messages received from a MIDI keyboard will affect the
envelopes in the XS. The exception here is that if an external control voltage is inserted into the VEL IN
jack, this external control voltage will override Velocity messages received from the MIDI keyboard,
allowing the external control voltages to trigger the accent circuit instead.
This accent section provides additional attack and decay times for Envelope 1, and a sensitivity control
that determines at what level will the Velocity make both Envelopes 1 and 2 use their accent times
instead of their normal times.
SENSITIVITY: The sensitivity control determines what level of Velocity will activate the accent
envelope times. When the sensitivity control is rotated fully counter-clockwise, no internal Velocity
value will be great enough to make the envelopes use their accent times. The exception here is that if an
external control voltage is inserted into the VEL IN jack, and this signal goes higher than +10 volts it
could still activate the accent envelope times. When the sensitivity control is rotated fully clockwise, all
internal Velocity values will cause the envelopes to use their accent times. The exception here is if an
external control voltage is inserted into the VEL IN jack, and this signal goes more negative than 0 volts
it could cause the envelopes to use their normal times instead.
Settings of the sensitivity control other than the extreme high or low values will cause the certain lower
Velocity values to trigger the normal envelope times while higher Velocity values will trigger the accent
envelope times.
When a Velocity value exceeds the sensitivity threshold, the accent LED indicator will light to show that
the accent decay times are currently being used for Envelopes 1 and 2.
ATTACK: The attack control determines the rate at which the envelope will transition from its current
amplitude to +10 volts when the accent section is activated by Velocity. This attack time can vary from
0.5 milliseconds to 4 seconds. When this control is rotated fully counter-clockwise, the fastest attack
time will occur. Rotate this control clockwise to increase the attack time.
Ideally, the attack portion of the envelope will begin at 0 volts, unless a note was recently played and the
envelope has not yet fully decayed to 0 volts.
DECAY: Once the attack portion of the envelope has reach +10 volts, the DECAY control determines
the rate at which the envelope will transition from this +10 volt level to the amplitude set by the sustain
control when the accent section is activated by Velocity. This decay time can vary from 2 milliseconds
to 10 seconds. When this control is rotated fully counter-clockwise the fastest decay time will occur.
Rotate this control clockwise to increase the decay time.
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