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A trigger pad is an electronic sensor on a drum that produces a certain sound assigned from a
sound module A sound module is an electronic musical instrument without a human-playable interface such as a piano-style musical keyboard. Sound modules have to be operated using an externally connected device, which is often a MIDI controller, of which th ...
once the head has been struck. This device allows drummers to play at a constant dynamic regardless of the physical force used. Triggers are also used to add more definition to drum sounds and prevent bleeding between sound sources, making it easier to hear clearly every drum hit without rumble or excessive cymbals. An example is where very rapid
bass drum The bass drum is a large drum that produces a note of low definite or indefinite pitch. The instrument is typically cylindrical, with the drum's diameter much greater than the drum's depth, with a struck head at both ends of the cylinder. T ...
hits become difficult to distinguish or even hear in the presence of a full band.


Other uses

Triggers are used to count and monitor drum hits, usually as a training device (e.g., to see if a drummer misses hits), and to officially monitor tests and competitions of drumming speed. Mike Portnoy uses an electronic drum pad with a hardwired electronic metronome as what he calls the "secret cowbell", to count off the songs in a way that only his fellow band members and the technicians can hear. Triggers can send a
MIDI MIDI (; Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, an ...
to a
lighting control console A lighting control console (also called a lightboard, lighting board, or lighting desk) is an electronic device used in theatrical lighting design to control multiple stage lights at once. They are used throughout the entertainment industry and a ...
to signal a change in stage displays.


References

{{Reflist Drum kit components