1-5 RELEASE FCXJTSWITCH
In PRESET Mode, if the RELEASE switch is programmed to be off, but the program
also contains an amplifier envelope release setting which can have an audible effect,
this release can be engaged either by switching RELEASE on, or by using the included
footswitch (which connects to the RELEASE FOOTSWITCH jack on the back panel).
The footswitch will function like the RELEASE switch on the front panel, except it
only operates when the RELEASE switch is (programmed) off. The footswitch then
takes the place of the RELEASE switch. When pushed, the programmed amplifier
release cycle is enabled. When not pushed, the amplifier release cycle is set to
minimum. In this respect, the footswitch functions similarly to apiano's sustain pedal.
Further expressive influences on the Prophet's programs can be brought about through
the use of other accessories which connect to the Prophet's back paneL For
information on these possibilities, see Section 3.
1-6 RETUNING
Although the microcomputer tunes the oscillators when the Prophet is first turned on,
it will occasionally be necessary to retune, particularly during the first few minutes of
operation since the oscillators need time to stabilize. (After 20 minutes or so the
instrument should not have to be retuned very often, unless there is aradical
temperature change in the room.)
Hitting the TUNE switch will tell the computer to retune the oscillators. During this
process the control panel goes dark—except for the TUNE switch—for two to eight
seconds (depending on how far out of tune the oscillators were), then will return to the
previous front panel status.
1-7 VOICE ASSIGNMENT
The microcomputer assigns the five synthesizer voices to keys played on the keyboard.
If the same key is struck repeatedly, the microcomputer assigns the same voice. If
more than five keys are held down at the same time, the computer will reassign the
earliest used voices first. For example: playing C, D, E, F, G, and Ain succession and
holding all six keys down will cause D, E, F, G, and Ato be sustained—the Cwill
disappear when the Ais played. In other words, the Prophet normally operates on a
"last-note priority" system: each new note played is assigned to the earliest-used
voice.
There is an exception to this system. If the UNISON switch is on, all five voices are
assigned to asingle key. In keeping with conventions established by monophonic
synthesizers, UNISON assigns priority to the lowest key held.
1-8 VOICE DEFEAT
For the occasion when avoice may become unplayable due to component failure, a
Voice Defeat allows you to delete the failed voice from the assignment system. The
Prophet can then be played normally, with the remaining voices.
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