9

Table Of Contents
The Filter receives its signal from the following sound sources: Oscillator 1, Oscillator 2,
the noise generator, and the ring modulator. The outputs of these sources are represented
by the three round objects and the smaller, rectangular ring modulator section to the
right, that surround the Filter.
One level down—from front to back—each of the sound source output objects provides
controls that determine how modulation sources, such as the LFO and envelopes, affect
the sound source. All modulation sources are discussed in Working with Modulation in
Ultrabeat.
Each of the sound sources that adjoins the filter also features a small signal flow button
(red, when active). This is used to determine (and indicate) whether the signal of the
associated sound source should proceed through the Filter or bypass it—before being
routed to Ultrabeat’s Output section.
The Output section is shown to the right. Signals sent from the Filter can pass through
two equalizers and a stage for stereo expansion or panoramic modulation. You can also
set up the initial output level and trigger behavior in this section. See Using the Ultrabeat
Output Section.
The output of the drum sound is then sent to the Assignment section mixer (see Getting
to Know Ultrabeat’s Assignment Section).
Getting to Know the Ultrabeat Oscillators
The Ultrabeat oscillators are used to generate waveforms. Oscillator 2 can use a sample
in place of a waveform. The signal of one, or both, oscillators is then sent to other portions
of the synthesizer engine for shaping, processing, or manipulation.
Other sound sources include a separate noise generator and ring modulator, which can
produce additional signals to those generated by the oscillators. See Using the Ultrabeat
Ring Modulator and Using the Ultrabeat Noise Generator.
Before the oscillator parameters are discussed, a few of the special features available to
you in Ultrabeat’s oscillator section should be pointed out.
Oscillator 1 can be frequency-modulated by Oscillator 2, for FM synthesis sounds.
Oscillator 2 can be ring-modulated with Oscillator 1.
Oscillator 2 can use an audio file (a sample), in place of a synthetic waveform. The
sample is output as the Oscillator 2 signal.
254 Chapter 11 Ultrabeat