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Table Of Contents
Chapter 23 Ultrabeat 311
The Asym parameter can be modulated by the sources found in the Mod and Via
menus. This allows you to create dynamic sound changes at the oscillator level. The
effect of the Mod and Via modulations are adjusted with the small sliders to the left
and right of the Asym slider. The range affected by the modulations is colored blue
(Mod) and green (Via). If no source is selected in the Mod and Via menus (set to Off),
the Mod and Via sliders remain hidden.
Note: The classic basic waveforms of analog synthesizers can be easily reproduced with
the Phase Oscillator: sine, rectangular, and sawtooth waves are each the result of
setting the Slope, Saturation, and Asym parameters to their minimum or maximum
values, in different combinations.
FM (Frequency Modulation)
In FM mode, Oscillator 1 generates a sine wave. Its frequency is modulated by the
waveform of Oscillator 2. Please remember that Oscillator 2 must be switched on to do
this. The more complex the Oscillator 2 waveform, the more partials will be created (by
increasing the FM Amount) during the FM process. You can watch the display to see
how the sine wave takes on an increasingly complex shape.
The FM Amount parameter can be modulated by the sources found in the Mod and Via
menus. If a Mod source is activated, the effect it has on FM Amount is altered by moving
the ring that surrounds the rotary knob. If a Via source is activated, its effect can be set
by the moveable slider that appears on the Mod ring. Between the rotary knob and its
surrounding Mod ring, colored areas clearly show the values of the Mod modulation
(blue) and the Via modulation (green), compared with the mean FM Amount value
(red).
If neither a Mod or Via source is selected (both set to Off), the Mod ring and slider
remain hidden.
Note: While the Phase Oscillator is well-suited for simulating analog waveforms and
analog-style sounds, FM mode offers bell-like digital tones and metallic sounds.
Filter Bypass Button
Between Oscillator 1 and the filter section you’ll find a signal flow switch that controls
the routing (Filter Bypass button). Repeated mouse clicks will send the signal to the
filter (Filter Bypass button turns red), or bypass the filter and send it directly to the EQ
section (Filter Bypass button remains gray).
The direction of the arrow on the Filter Bypass button illustrates the routing.