OfflineAudioContext
The OfflineAudioContext interface is an AudioContext interface representing an audio-processing graph built from linked together AudioNodes.
Properties
The audioWorklet read-only property of the processing. Available only in secure contexts.
The currentTime read-only property of the BaseAudioContext interface returns a double representing an ever-increasing hardware timestamp in seconds that can be used for scheduling audio playback, visualizing timelines, etc.
The destination property of the BaseAudioContext interface returns an AudioDestinationNode representing the final destination of all audio in the context.
The listener property of the BaseAudioContext interface returns an AudioListener object that can then be used for implementing 3D audio spatialization.
The sampleRate property of the BaseAudioContext interface returns a floating point number representing the sample rate, in samples per second, used by all nodes in this audio context.
The state read-only property of the BaseAudioContext interface returns the current state of the AudioContext.
Functions
The createAnalyser() method of the can be used to expose audio time and frequency data and create data visualizations.
The createBiquadFilter() method of the BaseAudioContext interface creates a BiquadFilterNode, which represents a second order filter configurable as several different common filter types.
The createBuffer() method of the BaseAudioContext Interface is used to create a new, empty AudioBuffer object, which can then be populated by data, and played via an AudioBufferSourceNode.
The createBufferSource() method of the BaseAudioContext Interface is used to create a new AudioBufferSourceNode, which can be used to play audio data contained within an AudioBuffer object.
The createChannelMerger() method of the BaseAudioContext interface creates a ChannelMergerNode, which combines channels from multiple audio streams into a single audio stream.
The createChannelSplitter() method of the BaseAudioContext Interface is used to create a ChannelSplitterNode, which is used to access the individual channels of an audio stream and process them separately.
The createConstantSource() property of the BaseAudioContext interface creates a outputs a monaural (one-channel) sound signal whose samples all have the same value.
The createConvolver() method of the BaseAudioContext interface creates a ConvolverNode, which is commonly used to apply reverb effects to your audio.
The createDelay() method of the which is used to delay the incoming audio signal by a certain amount of time.
The createDynamicsCompressor() method of the BaseAudioContext Interface is used to create a DynamicsCompressorNode, which can be used to apply compression to an audio signal.
The createGain() method of the BaseAudioContext interface creates a GainNode, which can be used to control the overall gain (or volume) of the audio graph.
The createIIRFilter() method of the BaseAudioContext interface creates an IIRFilterNode, which represents a general infinite impulse response (IIR) filter which can be configured to serve as various types of filter.
The createOscillator() method of the BaseAudioContext interface creates an OscillatorNode, a source representing a periodic waveform.
The createPanner() method of the BaseAudioContext Interface is used to create a new PannerNode, which is used to spatialize an incoming audio stream in 3D space.
The createPeriodicWave() method of the BaseAudioContext interface is used to create a PeriodicWave.
The createStereoPanner() method of the BaseAudioContext interface creates a StereoPannerNode, which can be used to apply stereo panning to an audio source.
The createWaveShaper() method of the BaseAudioContext interface creates a WaveShaperNode, which represents a non-linear distortion.
The decodeAudioData() method of the BaseAudioContext Interface is used to asynchronously decode audio file data contained in an rate, then passed to a callback or promise.
The startRendering() method of the OfflineAudioContext Interface starts rendering the audio graph, taking into account the current connections and the current scheduled changes.