Oberheim OB 12, Руководство по эксплуатации

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OB 12 Z-Domain Synthesizer
8.6 EDIT LFO1
181
•
PAN L and R: sets the distribution over the stereo panorama of the signal leaving the
AMPLIFIER section, and thus of the final Timbre sound.
The main function of an LFO (Low Frequency Oscillator) is to generate a low frequency signal
which can be used as modulant for the signals leaving the synthesizer’s main blocks, such as the
oscillators, the filter and the amplifier.
The OB-12 allows not only regulation of the frequency of the output signal, but also setting of its
waveform and regulation of its envelope and the parameters of a low-pass filter associated to the
LFO.
Discussing the parameters relating to the OB-12 sections, we have already discussed the effects
obtained by modulating the sound leaving the blocks referred to above using the signal obtained
from LFO1 and LFO2.
We will therefore now look at the programming pages of the first LFO. From the usual EDIT
TIMBRE MENU page, select field 1-EDIT LFO1. The display will show:
SAW: sawtooth waveform; TRIANGLE: triangular waveform;
SQUARE: square waveform;
RANDOM: waveform which assumes random
levels;
•
WAVE TYPE
([WAVE SELECT])
: sets the waveform of the signal leaving the first LFO. The
possible choices are: