MIDIReceiver

public protocol MIDIReceiver : AnyObject

Functionality we expect for entities that can receive MIDI messages.

  • The channel the controller listens on. If -1, then it wants msgs from ALL channels

    Declaration

    Swift

    var channel: Int { get }

  • Stop playing note.

    Declaration

    Swift

    func noteOff(note: UInt8)

    Parameters

    note

    the MIDI note to stop

  • Start playing a note.

    Declaration

    Swift

    func noteOn(note: UInt8, velocity: UInt8)

    Parameters

    note

    the MIDI note to play
    velocity

    the velocity to use when playing

  • Command the keyboard to release any pressed keys

    Declaration

    Swift

    func releaseAllKeys()

  • Update the key pressure of a playing note

    Declaration

    Swift

    func polyphonicKeyPressure(note: UInt8, pressure: UInt8)

    Parameters

    note

    the MIDI note that was previous started
    pressure

    the new pressure to use

  • Change a controller value

    Declaration

    Swift

    func controlChange(controller: UInt8, value: UInt8)

    Parameters

    controller

    the controller to change
    value

    the value to use

  • Change the program/preset (0-127)

    Declaration

    Swift

    func programChange(program: UInt8)

    Parameters

    program

    the new program to use

  • Change the whole pressure for the channel. Affects all playing notes.

    Declaration

    Swift

    func channelPressure(pressure: UInt8)

    Parameters

    pressure

    the new pressure to use

  • Update the pitch-bend controller to a new value

    Declaration

    Swift

    func pitchBendChange(value: UInt16)

    Parameters

    value

    the new pitch-bend value to use
  • process(_:when:) Extension method

    Process a collection of MIDI messages for the controller.

    Declaration

    Swift

    public func process(_ msgs: [MIDIMsg], when: MIDITimeStamp)

    Parameters

    msgs

    the MIDIMsg collection