Behringer PROTON - Sub-Oscillators; Width; Sync; Paraphonic Mode

18 PROTON User Manual
3.3 Sub-Oscillators
Each oscillator has its own sub-oscillator, whose waveform is
independent of the main one selected, and whose pitch is one
octave below that of the oscillator. To change the sub-oscillator
waveform press and hold the relevant VCO’s range button for
more than two seconds, until it starts ashing. Then use the LFO
encoder to select the required wave. Pressthe range button again
to return to main panel functions. Alternatively the waveform can
be selected using the SynthTribe app. The choice of waveforms
is: square, sawtooth, triangle or sine. Please note that although
the LFOs have a ramp wave as an option this is not available as a
sub-oscillator choice.
The main and sub-oscillators can be mixed using the sub mix
control. Atthe central position they are at equal levels, turning
the control clockwise (CW) emphasizes the main VCO; counter-
clockwise (CCW) emphasizes the sub.
3.4 Width
On each oscillator the square and tone mod waveforms can
have their pulse width altered by means of the width controls.
Therange is 10% duty to 90% duty.
3.5 Sync
The waveform cycle of Osc 2 can be synchronized to Osc 1 by
pressing the sync button. The further that Osc 2 is tuned away
from Osc 1 the more dramatic the eect. Modulation of Osc 2
from an envelope generator produces a classic eect. This can be
achieved by mixing an incoming CV from a keyboard, such as the
Behringer Swing with the output of an ASR envelope generator
using the CV mixer in the utilities section.
3.6 Paraphonic Mode
Pressing the para button puts the Proton into paraphonic mode,
where playing two notes will assign one to each oscillator.
The note priority can be set dierently for normal mode and
paraphonic mode. To select the note priority for normal mode
press and hold the sync button for more than two seconds, until it
ashes, then use the VCF 1 mode button to select: LPF = lowest
note priority; HPF = highest note priority and BPF = latest note
priority. For paraphonic selection use VCF 2 mode to select: LPF =
Osc 1 will play the lowest note, Osc 2 the highest; HPF = Osc 1 will
play the highest note, Osc 2 the lowest; BPF = Osc 1 will play the
rst note, Osc 2 the second. Pressing the para button again saves
your selection. This can also be done using the SynthTribe app.