Editing MIDI controller (section)

{{Short description|Device that produces MIDI data}}
{{Use American English|date=January 2020}}

[[File:Roland AX-1 keytar midi controller.JPG|thumb|A Roland [[keytar]],  keyboard MIDI controller designed to be worn with a shoulder strap during performance. The keytar does not produce any musical sounds by itself. As a MIDI controller, it only sends data about which keys or buttons are pressed to a MIDI-compatible [[sound module]] or [[synthesizer]], which then produces the sounds.]]

A '''MIDI controller''' is any hardware or software that generates and transmits Musical Instrument Digital Interface ([[MIDI]]) data to MIDI-enabled devices, typically to trigger sounds and control parameters of an electronic music performance. They most often use a [[musical keyboard]] to send data about the pitch of notes to play, although a MIDI controller may trigger lighting and other effects. A [[wind controller]] has a sensor that converts breath pressure to volume information and lip pressure to control pitch.  Controllers for percussion and stringed instruments exist, as well as specialized and experimental devices.  Some MIDI controllers are used in association with specific [[digital audio workstation]] software.  The original MIDI specification has been extended to include a greater range of control features.