Alesis ANDROMEDA A6 Reference Manual page 107

TUNE Page Parameters: OSC 1 and OSC 2
Each oscillator has tuning knobs for coarse, fine and ultra-fine tuning control. These
three controls have their neutral positions (where A-440 or Standard Pitch is
achieved) at 12 o'clock. For each knob, its lowest frequency position is fully counter-
clockwise. As you turn a knob clockwise, its frequency increases. As you turn the
knob counter-clockwise, its pitch is lowered.
DISPLAY
PAGE PANEL LABEL
TUNE
OCT Panel LED
SEMITONE
CENTS
FINE
·····
SYNC
(OSC 2 only)
When the
equals XXX.XX Hz
(left side) of the keyboard. When the frequency shows 440.00 Hz, the A6 is tuned to
standard pitch.
A A6 R
NDROMEDA
PARAMETER
DISPLAY
SEMI - 60 ···
CENTS - 100 ··· 100
FINE - 100 ··· 100
± 1/10 semitone
1PITCH
SYNC
page is selected for either oscillator, note that the screen displays "
TUNE
." Key "A4" is the third "A" key counting up from the bottom
M
EFERENCE ANUAL
Chapter 5: Oscillators and Filters
OPTIONS
or RANGE DESCRIPTION
The LED will light at each octave interval
OCT
as the
SEMITONE
60 Coarse tuning is accomplished with the
knob. Turning this knob changes
SEMITONE
the VCO's frequency in precise semitone
increments over a ten octave range: five
octaves up or five octaves down from the 12
o'clock center position (A-440).
For more precise tuning, use the
or soft knob
± 1 semitone
frequency set by the
fine tuned in cents. One cent is 1/100
semitone.
Fine tuning is accomplished with the
knob or soft knob
parameter changes the oscillators'
FINE
frequency in millicents. A millicent is 1/10
a cent, or 1/1000
OFF, ON If a VCO is being used as a modulation
source, it may be necessary to keep its pitch at
one particular frequency no matter what note
or notes are being played. Turning this
parameter
ON
tracking" of the selected VCO so that the same
note is produced regardless of what keys (or
MIDI notes) are played. More on this function
in the next topic
OFF, SOFT, An OSC 2 function only. See the expanded
discussion of this parameter beginning on
HARD
page 115.
knob, described next, is used.
CENTS
below the display. The
2
knob can be
SEMITONE
th
below the display. The
3
th
of a semitone.
will disable "keyboard
.
OSC 1 FM Parameters
A4
105
knob
of a
FINE
th
of