 BaseAudioContext
package js.html.audio
extends EventTarget extended by AudioContext, OfflineAudioContext
Available on js
The BaseAudioContext interface acts as a base definition for online and offline audio-processing graphs, as represented by AudioContext and OfflineAudioContext respectively. Documentation BaseAudioContext by Mozilla Contributors, licensed under CC-BY-SA 2.5.
See also:
https://developer.mozilla.org/en-US/docs/Web/API/BaseAudioContext
Variables
read onlycurrentTime:Float
Returns a double representing an ever-increasing hardware time in seconds used for scheduling. It starts at 0.
read onlydestination:AudioDestinationNode
Returns an AudioDestinationNode representing the final destination of all audio in the context. It can be thought of as the audio-rendering device.
read onlylistener:AudioListener
Returns the AudioListener object, used for 3D spatialization.
onstatechange:Function
An event handler that runs when an event of type statechange has fired. This occurs when the AudioContext's state changes, due to the calling of one of the state change methods (AudioContext.suspend, AudioContext.resume, or AudioContext.close).
read onlysampleRate:Float
Returns a float representing the sample rate (in samples per second) used by all nodes in this context. The sample-rate of an AudioContext cannot be changed.
read onlystate:AudioContextState
Returns the current state of the AudioContext.
Methods
createAnalyser():AnalyserNode
Creates an AnalyserNode, which can be used to expose audio time and frequency data and for example to create data visualisations.
Throws:

null
DOMError

createBiquadFilter():BiquadFilterNode
Creates a BiquadFilterNode, which represents a second order filter configurable as several different common filter types: high-pass, low-pass, band-pass, etc
Throws:

null
DOMError

createBuffer(numberOfChannels:Int, length:Int, sampleRate:Float):AudioBuffer
Creates a new, empty AudioBuffer object, which can then be populated by data and played via an AudioBufferSourceNode.
Throws:

null
DOMError

createBufferSource():AudioBufferSourceNode
Creates an AudioBufferSourceNode, which can be used to play and manipulate audio data contained within an AudioBuffer object. AudioBuffers are created using AudioContext.createBuffer or returned by AudioContext.decodeAudioData when it successfully decodes an audio track.
Throws:

null
DOMError

createChannelMerger(numberOfInputs:Int = 6):ChannelMergerNode
Creates a ChannelMergerNode, which is used to combine channels from multiple audio streams into a single audio stream.
Throws:

null
DOMError

createChannelSplitter(numberOfOutputs:Int = 6):ChannelSplitterNode
Creates a ChannelSplitterNode, which is used to access the individual channels of an audio stream and process them separately.
Throws:

null
DOMError

createConstantSource():ConstantSourceNode
Creates a ConstantSourceNode object, which is an audio source that continuously outputs a monaural (one-channel) sound signal whose samples all have the same value.
Throws:

null
DOMError

createConvolver():ConvolverNode
Creates a ConvolverNode, which can be used to apply convolution effects to your audio graph, for example a reverberation effect.
Throws:

null
DOMError

createDelay(maxDelayTime:Float = 1.0):DelayNode
Creates a DelayNode, which is used to delay the incoming audio signal by a certain amount. This node is also useful to create feedback loops in a Web Audio API graph.
Throws:

null
DOMError

createDynamicsCompressor():DynamicsCompressorNode
Creates a DynamicsCompressorNode, which can be used to apply acoustic compression to an audio signal.
Throws:

null
DOMError

createGain():GainNode
Creates a GainNode, which can be used to control the overall volume of the audio graph.
Throws:

null
DOMError

createIIRFilter(feedforward:Array<Float>, feedback:Array<Float>):IIRFilterNode
Creates an IIRFilterNode, which represents a second order filter configurable as several different common filter types.
Throws:

null
DOMError

createOscillator():OscillatorNode
Creates an OscillatorNode, a source representing a periodic waveform. It basically generates a tone.
Throws:

null
DOMError

createPanner():PannerNode
Creates a PannerNode, which is used to spatialise an incoming audio stream in 3D space.
Throws:

null
DOMError

createPeriodicWave(real:Float32Array, imag:Float32Array, ?constraints:Null<PeriodicWaveConstraints>):PeriodicWave
Creates a PeriodicWave, used to define a periodic waveform that can be used to determine the output of an OscillatorNode.
Throws:

null
DOMError

createScriptProcessor(bufferSize:Int = 0, numberOfInputChannels:Int = 2, numberOfOutputChannels:Int = 2):ScriptProcessorNode
Creates a ScriptProcessorNode, which can be used for direct audio processing via JavaScript.
Throws:

null
DOMError

createStereoPanner():StereoPannerNode
Creates a StereoPannerNode, which can be used to apply stereo panning to an audio source.
Throws:

null
DOMError

createWaveShaper():WaveShaperNode
Creates a WaveShaperNode, which is used to implement non-linear distortion effects.
Throws:

null
DOMError

decodeAudioData(audioData:ArrayBuffer, ?successCallback:AudioBuffer ‑> Void, ?errorCallback:DOMException ‑> Void):Promise<AudioBuffer>
decodeAudioData(audioData:ArrayBuffer, ?successCallback:AudioBuffer ‑> Void, ?errorCallback:() ‑> Void):Promise<AudioBuffer>
Asynchronously decodes audio file data contained in an ArrayBuffer. In this case, the ArrayBuffer is usually loaded from an XMLHttpRequest's response attribute after setting the responseType to arraybuffer. This method only works on complete files, not fragments of audio files.
Throws:

null
DOMError

resume():Promise<Void>
Resumes the progression of time in an audio context that has previously been suspended/paused.
Throws:

null
DOMError


    
{'path': 'public/docs/haxe~javascript/html/audio/baseaudiocontext.html', 'source': 'DevDocs.IO'}