Changing Settings
Changing Pitch end range
Pitch bend is set by pressing keys above and below middle C.
Up and down are set separately.
Program Change 3 followed by a note a ove Middle C will set the pitch-bend-up amount as the
number of semitones from Middle C to that note.
Program Change 3 followed by a note elow Middle C will set the pitch-bend-down amount as the
number of semitones from Middle C to that note.
Example: to set pitch end to 1 octave up and down:
Send a Program Change 3 message
Press the C key one octave a ove middle C
(MIDI bytes: 0x90, 0x48, 0x7F)
Send a Program Change 3 message
Press the C key one octave elow middle C (note on: 0x30, 48)
(MIDI bytes: 0x90, 0x30, 0x7F)
Example: to set pitch bend to Minor 3rd up and Major 4th down:
Send a Program Change 3 message
Send note on with a pitch of Eb a ove middle C
(MIDI bytes: 0x90, 0x3F, 0x7F)
Send a Program Change 3 message
Send note on with a pitch of G elow middle C
(MIDI bytes: 0x90, 0x37, 0x7F)
Setting Pulse-Width
Pulse width is set by MIDI controller number 95 (“phaser”).
A centre value of 64 gives equal mark:space ratio.
MIDI channel 1 controls pulse width for oscillator A on chip #1.
MIDI channel 2 controls pulse width for oscillator B on chip #1.
MIDI channel 3 controls pulse width for oscillator A on chip #2.
and so on up to...
MIDI channel 12 controls pulse width for oscillator B on chip #6.
Setting Detune
Detune is set by MIDI controller number 93 (“chorus”).
A centre value of 64 gives no detuning.
Higher or lower values affect pitch proportionally up to plus / minus 1 semitone.
MIDI channel 1 controls detune for oscillator A on chip #1.
MIDI channel 2 controls detune for oscillator B on chip #1.
MIDI channel 3 controls detune for oscillator A on chip #2.
and so on up to:
MIDI channel 12 controls detune for oscillator B on chip #6.
