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12
NEUTRON User Manual
4.7 Delay Section
The Neutron has an impressive analog bucket brigade delay section. Delay times
of 24 ms to 640 ms can be set. Effects from long dub delays to extreme chorusing
can be created. Set the MIX control at 12 o'clock. Then try turning the RATE
control fully left with the REPEAT control to the right a little for a long dub style
sound. Chorus effects can be created by modulating short delay times with an
LFO applied to the DELAY TIME input via one of the ATTENUATORS.
(23)
(24)
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4.8 Overdrive Section
The overdrive section can be used to add subtle warmth through to extreme
distortion by using an analog soft clipping circuit. Turning the DRIVE control to
the right increases the amount of distortion, adding rich harmonics. The TONE
control shapes the sound of the overdrive. To the left, high-end filtering is applied
to take away the harsh edge. When the TONE control is turned to the right the
low end is filtered out to give a brighter sound. As DRIVE level is increased, the
LEVEL control can be utilized to turn down the volume of the synthesizer, without
affecting the drive or tone of the sound.
NOTE: If the level control is all the way down it is possible that no sound
will be heard.
(26)
(27)
(28)
4.9 Envelope Section
The Neutron contains two ADSR (Attack, Decay, Sustain, Release) envelopes. Both
envelopes are triggered when a MIDI note is received unless the E.GATE 1/2 inputs
are used.
ENVELOPE 1 is routed to the VCA CV by default. This allows the signal to pass
through the unit when a MIDI note is being played and closes the VCA when no
note is being played.
ENVELOPE 2 is routed to the VCF, via the ENV DEPTH control, by default. This can
be used to create filter sweeps when a MIDI note is being played. Try different
combinations of slow and fast settings to create different sounds and textures.
(33)
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(36)
(29)
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4.10 Sample And Hold
The sample and hold function generates a random, stepped waveform by taking
a sample of the input signal. The sample rate is governed by the RATE control or
the SH CLOCK input. This generates a distinctive, bubbling random waveform that
can be used to modulate other synth parameters. Its random nature makes it well
suited to sci-fi effects. Try patching S&H to OSC 1&2 to modulate the oscillator's
pitch. The distinctive gurgling effect can be heard throughout sci-fi movies.
The GLIDE control limits the rate of change between samples, allowing smooth
(37)
(38)
transitions between sample values.
(39)
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4.11 Slew rate Limiter
PORTA TIME is the amount of time taken to transition between two MIDI notes.
This feature can be used to add a pleasing musical slide into your sounds.
The SLEW Limiter is used to limit the rate of change of a signal. For example, Slew
can be used to add Portamento to pitch CVs generated from an
external sequencer.
(41)
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4.12 Attenuators
ATTENUATOR 1 is an additional VCA which can be used to reduce the amplitude
of the input signal based on the Att1 CV control or the attenuator 1 front panel
control (43).
ATTENUATOR 2 - Reduces the amplitude of a signal based on the attenuator
2 control (44). The BIPOLAR LFO output is routed to the attenuator 2 input
by default.
Note: The attenuator 2 output is also routed to P.WIDTH 1 and P.WIDTH 2 controls
(41)
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by default.
(43)
(44)
4.13 Pitch Bend messages
The Neutron responds to pitch bend messages via USB MIDI or the MIDI IN and
is set to +/-2 semitones as a default. It is possible to change this with SysEx
Messages or via the Neutron App.
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