Apple MainStage 3 Instruments - MainStage 3 Instruments

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 rectangular ring modulator section to the right, that surround the Filter.
One level down—from front to back—each sound source output object provides modulation
controls. These determine how modulation sources, such as the LFO and envelopes, affect each
sound source. See Ultrabeat modulation overview on page 360.
Each sound source 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 the initial
output level and trigger behavior in this section. See Ultrabeat Output section overview on
page 355.
The output of the drum sound is then sent to the Assignment section mixer. See Ultrabeat
Assignment section overview on page 330.
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