Oberheim OB 12, Руководство по эксплуатации

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OB 12
Z-Domain Synthesizer
176
containing the present parameters:
•
ENVELOPE DEPTH
([ENV DEPTH] of the FILTERS section)
: regulates the depth of the envelope
applied to the filters in a range of values from +50 (maximum envelope, so maximum variation
of the sound timbre), 0 (no envelope, so no variation of the sound timbre) and -50 (maximum
negative envelope).
•
LFO1 DEPTH
([LFO1 DEPTH] of the FILTERS section)
: regulates the depth of modulation of the
signal originating from LFO1 on the timbre of the signal leaving the FILTERS section, by
modifying the filter cut-off frequencies and varying them continuously. The range of values is
from +50 (maximum modulation), 0 (no modulation), +50 (maximum modulation with phase
the reverse of the signal obtained from LFO1).
•
KEYB. TRACKING
( Keyboard Tracking, [KBD TRACK] of the FILTERS section)
: Sets the keyboard
tracking depth relative to the cut-off frequency of the filters depending on which key has been
pressed on the keyboard. In the case of a low pass filter, values close to zero mean that the
cut-off frequency remains the same across the entire keyboard range. This means that higher
notes will provide a softer sound than the lower notes, with fewer partials. When the parameter
is set with values close to +50 there will be an increase in the harmonics in the higher notes,
so that they will be brighter while the lower notes are darker. Conversely, if the parameter is
set with values close to -50 the higher notes will have even fewer harmonics than in the
standard configuration (trimmer in central position). Therefore, the lower notes will be brighter,
while the higher notes will be darker.
•
F.1 FREQUENCY
(Filter 1 Frequency, [FREQUENCY])
: parameter identical to the parameter of the
same name in the FILTERS video page, which sets the cut-off frequency of the first filter at
the envelope point of origin. It is also displayed in this video page to allow faster programming
of this section.
If we now select the ROUTING folder, it will be possible to display the parameters relating to the
connection configuration of the two filters.
•
ROUTING
([ROUTING])
: sets the connection between the two filters, using the values:
-
SERIAL: serial connection (previous video page);
- PARALLEL: parallel connection
containing the parameter:
•
BALANCE: regulates the balancing of the signal from the OSC.COMMON section, to be sent
separately to the two filters. If BALANCE=0 is set, the signal will be sent only to FILTER 1,
with BALANCE=100 the signal will only be present on FILTER 2. Intermediate values of