Oberheim OB 12, Руководство по эксплуатации

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OB 12
Z-Domain Synthesizer
7. 6 MODULATING the SOUND CYCLICALLY (LFO1)
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When the [AUTOPAN] LED is off, the trimmer regulates
the depth of modulation by LFO1 on the sound volume,
thus generating tremolo effects.
•
[AUTOPAN]: this button establishes whether LFO1 is to be assigned to the Pan (i.e. cyclic
shift of the signal from right to left); in this case the LED will illuminate. If the LED is off, the
Autopan function will not be available and LFO1 will modulate the signal level in cyclic mode.
N.B.: If you are using mono outputs (MAIN OUT [L/MONO], or AUX [1] or AUX [2] on its own)
the Pan effect will not be audible.
As we have already seen, LFO1 (Low Frequency Oscillator) generates a waveform which, when
required, will modulate the signal present in the sections we have described so far. This allows
you to vary the pitch of the sound (in the Osc.1 and 2 sections), the timbre (in the Filters), and the
volume/Pan (in the Amplifier), all in cyclic mode.
We will now take a detailed look at this section:
•
[RATE]: regulates the frequency of the modulating signal. Turn
the knob clockwise to increase the frequency of the signal and
thus the modulation rate.
•
[FADE]: sets the time in which the level of the modulating signal
will reach the maximum modulation value specified with the [LFO1
DEPTH] trimmers in the various generation sections. Turn the
trimmer clockwise to increase this delay.