Osc [Edit]: Octave; Osc [Edit]: Pitch Semitone; Osc [Edit]: Pitch Fine Tune - Alesis Ion Reference Manual

Alesis ion synths: reference manual
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5
Program Parameters

Osc [edit]: Octave

Page:
Soft Button:
Range:
Default:
This parameter lets you transpose the pitch of the oscillator up or down
a number of octave. You can use this to get high pitches from low keys,
or you can stagger the octaves of your three oscillators to create a very
rich sound from a single note. The octave can also be adjusted using the
[octave up] and [octave down] buttons, which appear as up and down
arrows at the right of each oscillator section. Each time you press one
of these buttons, the oscillator will be transposed up or down an octave,
and the button will light up progressively more brightly. You can use the
brightness of the light as a quick visual indication of whether your
oscillator is octave-shifted, and by how much.

Osc [edit]: Pitch Semitone

Page:
Soft Button:
Range:
Default:
This parameter lets you transpose the pitch of the oscillator a number of
chromatic half-steps. For example, if you set this parameter to 1 and play
a C, you will hear a C#.

Osc [edit]: Pitch Fine Tune

Page:
Soft Button:
Range:
Default:
This parameter lets you transpose the pitch of the oscillator by half-
cents. A cent is 1% of a semitone, so you might expect such tiny
adjustments to be unnoticeable. However, if you have multiple
oscillators playing together, small changes to relative tuning can have
large effects. In particular, oscillators that are slightly detuned from one
another can produce a much fuller sound than oscillators playing exactly
in unison. For oscillators 2 and 3, tuning can also be adjusted with the
pitch knob, to the right of the shape knob. If you use the knob to push
Osc Pitch Fine Tune past 99.5, then Osc Pitch Semitone will be
incremented and the fine tune will wrap around to zero.
54
1
3
-3 – 3
0
2
1
-7 – 7
0
2
2
-99.5 – 99.5
0
Remember: to reset a parameter to its
default value, perform a quick double-press
of its Soft button.

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