Behringer DEEPMIND 6 Manual - Page 81

Vcf Freq Fader

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81 DeepMind 6 User Manual 8.5 VCF 8.5.1 VCF FREQ FADER The VOLTAGE CONTROLLED FILTER (VCF) is an advanced filter designed specifically for the DeepMind 6. The VCF filter 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 filter, with the ability to be switched from a 2-pole/12 dB per octave filter to a 4-pole/24 dB per octave filter. The dB per octave refers to the angle of the filter's slope/response curve. The VCF also has adjustable resonance which creates a narrow peak around the filter cut-off frequency. The DeepMind 6 filter is capable of being driven into self oscillation when the resonance setting is high. Unlike many other synthesizers, the DeepMind 6 is capable of accurate pitch tracking even when the filter resonance is pushed to (and past) the point where the filter starts to selfoscillate. 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. • 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 filter to sculpt the sonic characteristics of the OSCs and noise generator, or you can dynamically adjust the fader to create sweeps of the filter 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 effect. The diagram below shows the results from high, medium and low settings of the cut-off frequency when applied to the SAWTOOTH and SQUARE waveforms. VCF FREQUENCY SAWTOOTH SQUARE HIGH LEVEL (dB) FREQUENCY (Hz) LEVEL (dB) -3 dB MED FREQUENCY (Hz) LEVEL (dB) -3 dB LOW FREQUENCY (Hz) The VCF FREQ range is from 50.0 Hz to 20000.0 Hz. The default VCF FREQUENCY setting is 20000.0 Hz (fully open). The fader position, current value and stored value for the VCF FREQ fader is shown on the PROG screen. There is also a visualization of the filter curve as shown below.

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81
DeepMind 6 User Manual
8.5
VCF
The VOLTAGE CONTROLLED FILTER (VCF) is an advanced filter designed specifically
for the DeepMind 6. The VCF filter 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 filter, with the ability to be switched from a 2-pole/12 dB
per octave filter to a 4-pole/24 dB per octave filter. The dB per octave refers to the
angle of the filter's slope/response curve.
The VCF also has adjustable resonance which creates a narrow peak around the
filter cut-off frequency. The DeepMind 6 filter is capable of being driven into self
oscillation when the resonance setting is high. Unlike many other synthesizers,
the DeepMind 6 is capable of accurate pitch tracking even when the filter
resonance is pushed to (and past) the point where the filter 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 filter to sculpt the sonic characteristics of the OSCs and noise
generator, or you can dynamically adjust the fader to create sweeps of the
filter 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 effect.
The diagram below shows the results from high, medium and low settings of
the cut-off frequency when applied to the SAWTOOTH and
SQUARE waveforms.
The VCF FREQ range is from 50.0 Hz to 20000.0 Hz. The default VCF
FREQUENCY setting is 20000.0 Hz (fully open).
The fader position, current value and stored value for the VCF FREQ fader is
shown on the PROG screen. There is also a visualization of the filter curve as
shown below.
LEVEL (dB)
FREQUENCY (Hz)
HIGH
SAWTOOTH
SQUARE
MED
LOW
VCF FREQUENCY
LEVEL (dB)
-3 dB
FREQUENCY (Hz)
LEVEL (dB)
-3 dB
FREQUENCY (Hz)