Members

static, constant MidiCommand :Object.<string, number>

modules/Midi.mjs, line 11

Object representing a mapping between a General MIDI command and its protocol value.

static, constant MidiInstrument :Object.<string, number>

modules/Midi.mjs, line 20

Object representing a mapping between a General MIDI instrument and its patch number.

Methods

static getMidiChannel(midiData) → {number}

modules/Midi.mjs, line 86

Returns the MIDI channel target for the command specified in midiData.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

number -

MIDI channel target specified in midiData

static getMidiCommand(midiData) → {number}

modules/Midi.mjs, line 60

Returns a value representing the MIDI command in the specified midiData.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

number -

MIDI command specified in the corresponding midiData

See:

• MidiCommand

static getMidiCommandString(midiData) → {string}

modules/Midi.mjs, line 74

Returns a string representing the MIDI command in the specified midiData.

The returned string can be used to index into the MidiCommand map object.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

string -

String representing the MIDI command in the specified midiData

See:

• MidiCommand

static getMidiInstrumentChange(midiData) → {number}

modules/Midi.mjs, line 130

Returns the target MIDI instrument patch value for the MIDI channel indicated in the specified midiData parameter.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

number -

Target MIDI instrument patch value for the specified MIDI channel

See:

• MidiInstrument

static getMidiInstrumentChangeString(midiData) → {string}

modules/Midi.mjs, line 145

Returns the target MIDI instrument for the MIDI channel indicated in the specified midiData parameter.

The returned string can be used to index into the MidiInstrument map object.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

string -

Target MIDI instrument name for the specified MIDI channel

See:

• MidiInstrument

static getMidiNote(midiData) → {number}

modules/Midi.mjs, line 97

Returns the MIDI note corresponding to the NoteOn or NoteOff command in the specified midiData parameter.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

number -

MIDI note corresponding to the relevant midiData command

static getMidiPitchBend(midiData, maxPitchBendNumSemitones) → {number}

modules/Midi.mjs, line 158

Returns a scaler value by which the fundamental frequency of the unbent MIDI note should be multiplied in order to output to the correct frequency.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data
maxPitchBendNumSemitones	number	Absolute maximum number of semitones to which a note can be bent

Returns:

number -

Frequency scaler by which the unbent fundamental frequency should be multiplied

static getMidiProgramChange(midiData) → {number}

modules/Midi.mjs, line 118

Returns the target program number for the MIDI channel specified in midiData.

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

number -

Target program number for the specified MIDI channel

static getMidiVelocity(midiData) → {number}

modules/Midi.mjs, line 108

Returns the note velocity corresponding to the NoteOn or NoteOff command in the specified midiData parameter. This velocity will be in the range from [0.0, 1.0].

Parameters:

Name	Type	Description
midiData	Array.<number>	Data array containing raw MIDI event data

Returns:

number -

Note velocity for a MIDI note in the range [0.0, 1.0]