Class MidiIn

Wrapper for webmidi.js input. Listens on multiple channels.

Index

Constructors

Properties

_noteOff _noteOn callback channels log noteOffMap

Methods

deactivate listen noteOff noteOn unlisten

Constructors

constructor

new MidiIn(callback, channels, log?): MidiIn
Construct a new wrapper for a webmidi.js input device.
Parameters
- callback: NoteOnCallback
  Function to call when a note-on event is received on any of the available channels.
- channels: Set<number>
  Channels to listen on.
- Optional log: ((msg) => void)
  Logging function.
  - - (msg): void
    - Parameters
      msg: string
      Returns void
Returns MidiIn
- Defined in index.ts:310

Properties

`Private` _noteOff

_noteOff: ((event) => void)

Type declaration

- (event): void
- Parameters
  - event: NoteMessageEvent
  Returns void

`Private` _noteOn

_noteOn: ((event) => void)

Type declaration

- (event): void
- Parameters
  - event: NoteMessageEvent
  Returns void

callback

callback: NoteOnCallback

channels

channels: Set<number>

log

log: ((msg) => void)

Type declaration

- (msg): void
- Parameters
  - msg: string
  Returns void

`Private` noteOffMap

noteOffMap: Map<number, ((rawRelease) => void)>

Note-off map from (noteNumber + (midiChannel - 1) * 128) to callbacks.

Type declaration

- (rawRelease): void
- Parameters
  - rawRelease: number
  Returns void

Methods

deactivate

deactivate(): void
Fire global note-off.

Returns void
- Defined in index.ts:385

listen

listen(input): void
Make this wrapper (and your callback) respond to note-on/off events from this MIDI input.
Parameters
- input: Input
  MIDI input to listen to.
Returns void
- Defined in index.ts:334

`Private` noteOff

noteOff(event): void
Parameters
- event: NoteMessageEvent
Returns void
- Defined in index.ts:363

`Private` noteOn

noteOn(event): void
Parameters
- event: NoteMessageEvent
Returns void
- Defined in index.ts:348

unlisten

unlisten(input): void
Make this wrapper (and your callback) stop responding to note-on/off events from this MIDI input.
Parameters
- input: Input
  MIDI input that was listened to.
Returns void
- Defined in index.ts:343