Ultrabeat oscillator 1 side chain in MainStage

In side chain mode, Ultrabeat uses an external side-chain input as the source for oscillator 1. The signal of any audio channel strip, bus, or live input can be routed through Ultrabeat filters, envelopes, LFO, and step sequencer. Using busses as side chain sources makes it possible to route signals to the side chain input from any channel strip type that offers busses as outputs or sends. This includes software instrument channel strips, aux channel strips, or a mix of multiple channel strips that are routed into a common aux (subgroup), that has a bus as the output destination.

This feature enables you to use an audio input from oscillator 1, along with the synthesis engine of oscillator 2, to create a part live audio, part synthesized drum sound, for example. As another creative option, you could use one drum sound in a kit to filter an external audio signal with a sequenced groove.

There are two points to note about side chain use in Ultrabeat:

• The side chain affects only the selected drum sound—other Ultrabeat drum sounds and sequences are not altered.

• A side chain audio signal alone is not enough to trigger Ultrabeat. To hear the side chained audio signal, you need to make sure that Ultrabeat is triggered by MIDI or the internal step sequencer.