Instrument < Options >

Base-class for all instruments

Constructor

new Instrument (
options?:Partial<InstrumentOptions >
) => Instrument

Properties

blockTime #

readonly Seconds

The number of seconds of 1 processing block (128 samples)


console.log(Tone.Destination.blockTime);

channelCount #

number

channelCount is the number of channels used when up-mixing and down-mixing connections to any inputs to the node. The default value is 2 except for specific nodes where its value is specially determined.

channelCountMode #

ChannelCountMode

channelCountMode determines how channels will be counted when up-mixing and down-mixing connections to any inputs to the node. The default value is "max". This attribute has no effect for nodes with no inputs.

  • "max" - computedNumberOfChannels is the maximum of the number of channels of all connections to an input. In this mode channelCount is ignored.
  • "clamped-max" - computedNumberOfChannels is determined as for "max" and then clamped to a maximum value of the given channelCount.
  • "explicit" - computedNumberOfChannels is the exact value as specified by the channelCount.

channelInterpretation #

ChannelInterpretation

channelInterpretation determines how individual channels will be treated when up-mixing and down-mixing connections to any inputs to the node. The default value is "speakers".

context #

BaseContext

The context belonging to the node.

debug #

boolean

Set this debug flag to log all events that happen in this class.

disposed #

readonly boolean

Indicates if the instance was disposed. 'Disposing' an instance means that all of the Web Audio nodes that were created for the instance are disconnected and freed for garbage collection.

input #

undefined

The instrument only has an output

name #

string

The name of the class

numberOfInputs #

readonly number

The number of inputs feeding into the AudioNode. For source nodes, this will be 0.


const node = new Tone.Gain();
console.log(node.numberOfInputs);

numberOfOutputs #

readonly number

The number of outputs of the AudioNode.


const node = new Tone.Gain();
console.log(node.numberOfOutputs);

sampleTime #

readonly Seconds

The duration in seconds of one sample.


console.log(Tone.Transport.sampleTime);

static version #

string

The version number semver

volume #

Param<"decibels" >

The volume of the output in decibels.


const amSynth = new Tone.AMSynth().toDestination();
amSynth.volume.value = -6;
amSynth.triggerAttackRelease("G#3", 0.2);

Methods

chain #

Connect the output of this node to the rest of the nodes in series.


const player = new Tone.Player("https://tonejs.github.io/examples/audio/FWDL.mp3");
player.autostart = true;
const filter = new Tone.AutoFilter(4).start();
const distortion = new Tone.Distortion(0.5);
// connect the player to the filter, distortion and then to the master output
player.chain(filter, distortion, Tone.Destination);
chain (
...nodes:InputNode []
) => this

connect #

connect the output of a ToneAudioNode to an AudioParam, AudioNode, or ToneAudioNode

connect (
destination:InputNode ,

The output to connect to

outputNum= 0:number ,

The output to connect from

inputNum= 0:number

The input to connect to

) => this

disconnect #

disconnect the output

disconnect (
destination?:InputNode ,
outputNum= 0:number ,
inputNum= 0:number
) => this

dispose #

clean up

dispose ( ) => this
this

fan #

connect the output of this node to the rest of the nodes in parallel.


const player = new Tone.Player("https://tonejs.github.io/examples/audio/FWDL.mp3");
player.autostart = true;
const pitchShift = new Tone.PitchShift(4).toDestination();
const filter = new Tone.Filter("G5").toDestination();
// connect a node to the pitch shift and filter in parallel
player.fan(pitchShift, filter);
fan (
...nodes:InputNode []
) => this

get #

Get the object's attributes.


const osc = new Tone.Oscillator();
console.log(osc.get());
get ( ) => Options

static getDefaults #

Returns all of the default options belonging to the class.

getDefaults ( ) => InstrumentOptions

immediate #

Return the current time of the Context clock without any lookAhead.


setInterval(() => {
	console.log(Tone.immediate());
}, 100);
immediate ( ) => Seconds

now #

Return the current time of the Context clock plus the lookAhead.


setInterval(() => {
	console.log(Tone.now());
}, 100);
now ( ) => Seconds

set #

Set multiple properties at once with an object.


const filter = new Tone.Filter();
// set values using an object
filter.set({
	frequency: 300,
	type: "highpass"
});
set (
props:RecursivePartial<Options >
) => this

sync #

Sync the instrument to the Transport. All subsequent calls of triggerAttack and triggerRelease will be scheduled along the transport.


const fmSynth = new Tone.FMSynth().toDestination();
fmSynth.volume.value = -6;
fmSynth.sync();
// schedule 3 notes when the transport first starts
fmSynth.triggerAttackRelease("C4", "8n", 0);
fmSynth.triggerAttackRelease("E4", "8n", "8n");
fmSynth.triggerAttackRelease("G4", "8n", "4n");
// start the transport to hear the notes
Tone.Transport.start();
sync ( ) => this

toDestination #

Connect the output to the context's destination node.


const osc = new Tone.Oscillator("C2").start();
osc.toDestination();
toDestination ( ) => this

toFrequency #

Convert the input to a frequency number


const gain = new Tone.Gain();
console.log(gain.toFrequency("4n"));
toFrequency (
freq:Frequency
) => Hertz

toMaster # DEPRECATED

Connect the output to the context's destination node. See toDestination

toMaster ( ) => this

toSeconds #

Convert the incoming time to seconds


const gain = new Tone.Gain();
console.log(gain.toSeconds("4n"));
toSeconds (
time?:Time
) => Seconds

toString #

Convert the class to a string


const osc = new Tone.Oscillator();
console.log(osc.toString());
toString ( ) => string

toTicks #

Convert the input time into ticks


const gain = new Tone.Gain();
console.log(gain.toTicks("4n"));
toTicks (
time?:Time | TimeClass
) => Ticks

triggerAttack #

Start the instrument's note.

triggerAttack (
note:Frequency ,

the note to trigger

time?:Time ,

the time to trigger the ntoe

velocity?:NormalRange

the velocity to trigger the note (betwee 0-1)

) => this

triggerAttackRelease #

Trigger the attack and then the release after the duration.


const synth = new Tone.Synth().toDestination();
// trigger "C4" for the duration of an 8th note
synth.triggerAttackRelease("C4", "8n");
triggerAttackRelease (
note:Frequency ,

The note to trigger.

duration:Time ,

How long the note should be held for beforetriggering the release. This value must be greater than 0.

time?:Time ,

When the note should be triggered.

velocity?:NormalRange

The velocity the note should be triggered at.

) => this

triggerRelease #

Trigger the release phase of the current note.

triggerRelease (
...args:any []
) => this

unsync #

Unsync the instrument from the Transport

unsync ( ) => this