Sequential Split-Eight - Oscillator Parameter Details

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Figure 1
VOICE BLOCK DIAGRAM
CM60SA
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OSCILLATOR
The oscillator is an audio-frequency source always under control of
COARSE and FINE FREQUENCY, the keyboard, PITCH wheel, and
MASTER TUNE. Oscillator frequency can be modulated by the LFO
and by the envelope generator. PULSE-WIDTH (PW) can also be
modulated by the LFO.
If no waveshape parameter is on, the oscillator will have no audio
output. If two or three waveshapes are on, they are mixed at full
level and supplied as the oscillator's output to the MIXER.
COARSE FREQUENCY
Value Range: 00-48
00s lowest octave
12= one octave up
24= two octaves (middle C)
36= three octaves
48= four octaves
Adjusts oscillator'pitch in semitones, over a four-octave range. To
this is added the four-octave keyboard, for a total range of eight
octaves.
Note that to keep programs in tune, this parameter should normally
be adjusted to the octaves (00, 12, 24...).
Exact oscillator- pitch should be fine-toned with MASTER TUNE, with
FINE at a value of 0.
FINE FREQUENCY
Value Range: 00-31
32= one semitone
Normally this parameter is set to 0, while oscillator pitch is adjusted
with MASTER TUNE. This parameter adjusts oscillator frequency by
up to just less than a semitone. This allows detuning of the oscillator,
usually for use only in Double mode.
SAWTOOTH WAVE
Value Range: 00/01
00= Off
01= On
Enables full-level waveshape containing all harmonics. This basic
shape is often described as "brassy."
CM608A 12