Optional threshold: numberThe value above which the compression starts to be applied.
Optional ratio: numberThe gain reduction ratio.
Optional options: Partial<CompressorOptions>Readonly attackThe amount of time (in seconds) to reduce the gain by 10dB.
0
1
Readonly contextThe context belonging to the node.
Set this debug flag to log all events that happen in this class.
Readonly inputThe input node or nodes. If the object is a source, it does not have any input and this.input is undefined.
Readonly kneeA decibel value representing the range above the threshold where the curve smoothly transitions to the "ratio" portion.
0
40
Readonly nameThe name of the class
Readonly outputThe output nodes. If the object is a sink, it does not have any output and this.output is undefined.
Readonly ratioThe amount of dB change in input for a 1 dB change in output.
1
20
Readonly releaseThe amount of time (in seconds) to increase the gain by 10dB.
0
1
Readonly thresholdThe decibel value above which the compression will start taking effect.
-100
0
Static versionThe version number semver
The number of seconds of 1 processing block (128 samples)
console.log(Tone.Destination.blockTime);
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 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.
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".
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.
The number of inputs feeding into the AudioNode. For source nodes, this will be 0.
const node = new Tone.Gain();
console.log(node.numberOfInputs);
The number of outputs of the AudioNode.
const node = new Tone.Gain();
console.log(node.numberOfOutputs);
A read-only decibel value for metering purposes, representing the current amount of gain reduction that the compressor is applying to the signal. If fed no signal the value will be 0 (no gain reduction).
The duration in seconds of one sample.
Connect the output of this node to the rest of the nodes in series.
Rest ...nodes: InputNode[]const player = new Tone.Player("https://tonejs.github.io/audio/drum-samples/handdrum-loop.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);
connect the output of a ToneAudioNode to an AudioParam, AudioNode, or ToneAudioNode
The output to connect to
The output to connect from
The input to connect to
disconnect the output
Optional destination: InputNodeconnect the output of this node to the rest of the nodes in parallel.
Rest ...nodes: InputNode[]const player = new Tone.Player("https://tonejs.github.io/audio/drum-samples/conga-rhythm.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);
Get the object's attributes.
const osc = new Tone.Oscillator();
console.log(osc.get());
Set multiple properties at once with an object.
const filter = new Tone.Filter().toDestination();
// set values using an object
filter.set({
frequency: "C6",
type: "highpass"
});
const player = new Tone.Player("https://tonejs.github.io/audio/berklee/Analogsynth_octaves_highmid.mp3").connect(filter);
player.autostart = true;
Convert the incoming time to seconds. This is calculated against the current TransportClass bpm
const gain = new Tone.Gain();
setInterval(() => console.log(gain.toSeconds("4n")), 100);
// ramp the tempo to 60 bpm over 30 seconds
Tone.getTransport().bpm.rampTo(60, 30);
Static get
Compressor is a thin wrapper around the Web Audio DynamicsCompressorNode. Compression reduces the volume of loud sounds or amplifies quiet sounds by narrowing or "compressing" an audio signal's dynamic range. Read more on Wikipedia.
Example