Overview; Software Setup; Oscillator Section; Filter Section - Behringer NEUTRON User Manual

10
NEUTRON User Manual

4. Overview

This overview will help you set up the Neutron analog synthesizer and briefly
introduce its capabilities.
4.1 Connection
The Neutron has a ¼" (6.35 mm) mono jack output on the rear of the unit which
is also duplicated on the patch bay via a 3.5 mm output. Audio input is via a ¼"
(6.35 mm) mono jack on the rear panel. Please consult the connection set-up
guide for examples (8.1).
Caution: Do not overload the 3.5 mm inputs. They can only accept the correct
level of voltages as shown in the specification tables later in this manual. The
3.5 mm outputs should only be connected to inputs capable of receiving the
output voltages. Failure to follow these instructions may damage the Neutron or
external units.

4.2 Software Setup

The Neutron is a USB Class Compliant MIDI device, and so no driver installation
is required. The Neutron does not require any additional drivers to work with
Windows and MacOS.
4.3 Hardware Setup
Make all the connections in your system. Use the rear panel MIDI switches to
set the Neutron to a unique MIDI channel in your system. Connect an external
keyboard with MIDI output directly to the Neutron MIDI IN 5-pin DIN type input
or via MIDI over USB. Apply power to the Neutron using the supplied power
adapter only. Ensure your sound system is turned down. Turn on the Neutron rear
panel power switch.

4.4 Oscillator Section

(1) (2) (3)
(5)
(4)
(6)
(7)
(10) (8) (9) (11)
Each oscillator has a tune control which gives approximately +/-1 octave range
in 8/16/32 modes or a range from 0.7 Hz to over 50 kHz when all range LEDs are
illuminated which is around +/-10 octaves.
The OSC MIX control is used to blend between the two oscillators to create rich
harmonic sounds.
You can adjust the SHAPE control for each oscillator to select different
waveforms, if in blend mode, the waveforms will morph into one another in a
smooth transition.
The five oscillator shapes are:
Tone Mod
Square/Pulse
Sawtooth
Triangle
Sine
The P. WIDTH affects the first two wave shapes, TONE MOD and SQUARE WAVE.
When OSC SYNC is engaged, oscillator 1 tracks the MIDI note and provides a
reference to reset the period of oscillator 2.
When the PARAPHONIC switch is engaged, it allows the two oscillators to be
independently pitched when more than one MIDI note is played simultaneously.
If only one note is played, both oscillators will be driven at the same pitch.
The NOISE control injects white noise into the filter, which can be used to add
another texture to the sound. Noise can be used to create percussive sounds
when used with short VCA envelope settings.
VCA Bias is used to control the VCA. It allows the user to 'open' the VCA without
triggering the envelope (e.g. with a MIDI note), allowing audio to sound
continuously.
(21)
(22)

4.5 Filter Section

The Neutron has a powerful 12 dB filter with three modes available:
High Pass Filter (HPF)
Band Pass Filter (BPF)
Low Pass Filter (LPF)
The mode button steps through each filter mode.
The FREQ control sets the filter cutoff frequency. The RESO control adjusts the
resonance of the filter. When the resonance control is set to at, or close to,
maximum the VCF will become self-resonant and produce a sine wave tuned to
the cutoff frequency of the filter. This tone can be used in sound creation and
played in tune with the oscillators by activating KEY TRACK and tuning the VCF
using the FREQ control.
(13) (12)
(14)
(15)
(16)
(17)