Behringer DEEPMIND 12 User Manual page 67

67 DeepMind 12 User Manual
PORTA-OSC-BAL - This option allows you to balance the application of PORTA-
TIME (I.e. the slide time between played notes) between OSC 1 and OSC 2.
When a positive setting is chosen, the OSC 1 PORTA-TIME will decrease. At its
maximum value (127) the OSC 1 PORTA-TIME will be zero and the pitch change
will happen immediately (no sliding).
When a negative setting is chosen, the OSC 2 PORTA-TIME will decrease. At its
minimum value (-127) the OSC 2 PORTA-TIME will be zero and the pitch change
will happen immediately (no sliding).
PORTAMENTO BALANCE
PORTA-BAL 0
Start Pitch
Stop Pitch
TIME (seconds)
PORTA-BAL +VE
Start Pitch
OSC 1
Stop Pitch
TIME (seconds)
PORTA-BAL +VE
Start Pitch
OSC 2
Stop Pitch
TIME (seconds)
The PORTA-OSC-BAL parameter ranges from -128 to 127. The default setting is 0.
P.BEND RANGE+ - This option allows you to set the upper limit of the PITCH
WHEEL.
The P.BEND RANGE+ parameter can be varied from 0(0 notes) to 24(24 notes). The
default P.BEND RANGE+ setting is 2(2 notes).
P.BEND RANGE- - This option allows you to set the lower limit of the PITCH
WHEEL.
The P.BEND RANGE- parameter can be varied from 0(0 notes) to 24(24 notes). The
default P.BEND RANGE- setting is 2(2 notes).
GLOBAL-TUNE - This option allows you to adjust the GLOBAL TUNING for the
synthesizer. The range is -128 to 127.
To exit the PITCH PARAMETERS menu press the PROG switch to return the main
display, or because you are in the PITCH PARAMETERS menu you can press the
POLY EDIT switch again to return to the main display.
OSC 1 and OSC 2
OSC 2
OSC 1
8.5 VCF
The VOLTAGE CONTROLLED FILTER (VCF) is an advanced fi lter designed specifi cally
for the DeepMind 12. The VCF fi lter changes the tone color created by the OSCs
and NOISE generator by cutting off , or emphasizing frequencies/harmonics. The
VCF stage allows the low frequencies to pass and cuts off higher frequencies. This
approach is used by many classic subtractive synthesizers.
The VCF is a fully analog fi lter, with the ability to be switched from a 2-pole/12 dB
per octave fi lter to 4-pole/24 dB per octave fi lter. The dB per octave refers to the
angle of the fi lter's slope/response curve.
The VCF also has adjustable resonance which creates a narrow peak around
the fi lter cut-off frequency. The DeepMind 12 fi lter is capable of being driven
into self oscillation when the resonance setting is high. Unlike many other
synthesizers, the synthesizer is capable of accurate pitch tracking even when the
fi lter resonance is pushed to (and past) the point where the fi lter starts to self-
oscillate. The self-oscillation is tuned so that you can play it as a fully polyphonic
3rd oscillator across the entire range of playable notes.
The VCF can be modulated dynamically by the VCF Envelope, LFO or Keyboard
Tracking. The VCF Frequency is also available in the Mod Matrix as a destination
where it can be modulated from any of the Mod Matrix sources.
8.5.1 VCF FREQ FADER
The VCF FREQ fader controls the cut-off frequency of the VCF. The VCF will begin
cutting frequencies below the cut-off frequency and continue to cut them at a
rate depending on the number of poles used.
You can use the fi lter to sculpt the sonic characteristics of the OSCs and noise
generator, or you can dynamically adjust the fader to create sweeps of the fi lter
which will create distinctive movement.
Modulating the cut-off frequency with sources such as an envelope generator,
with fast attack settings can help emulate the attack transients of natural
instruments, or be used to creative eff ect.