features.md

NOTE:

1. All supported properties of web audio are listed here.
2. All passed wpt test are list in wpt_test folder.

AudioBuffer

Feature

All Support

WPT Test

Wpt Test	Test State	Description
acquire-the-content.html		Not implement ConvolverNode
audiobuffer-copy-channel.html
audiobuffer-getChannelData.html
audiobuffer-reuse.html		Not implement ChannelMergerNode
audiobuffer.html
ctor-audiobuffer.html
crashtests/copyFromChannel-bufferOffset-1.html
crashtests/copyToChannel-bufferOffset-1.html

AudioContext

Feature

Feature	Support State
constructor	✅
baseLatency	❌
outputLatency	❌
sinkId	❌
renderCapacity	❌
onsinkchange	❌
onerror	❌
getOutputTimestamp()	❌
resume()	❌
suspend()	❌
close()	❌
setSinkId((DOMString or AudioSinkOptions) sinkId)	❌
createMediaElementSource(HTMLMediaElement mediaElement)	❌
createMediaStreamSource(MediaStream mediaStream)	❌
createMediaStreamTrackSource(MediaStreamTrack mediaStreamTrack)	❌
createMediaStreamDestination()	❌

WPT Test

AudioDestinationNode

Feature

Part Support

WPT Test

Pass All Test

AudioNode

Feature

Feature	Support State
connect (destinationNode)	✅
connect (destinationNode, output, input)	❌
connect (destinationParam, output)	❌
disconnect ()	✅
disconnect (output)	❌
disconnect (destinationNode)	❌
disconnect (destinationNode, output)	❌
disconnect (destinationNode, output, input)	❌
disconnect (destinationParam)	❌
disconnect (destinationParam, output)	❌
context	✅
numberOfInputs	✅
numberOfOutputs	✅
channelCount	✅ (read only)
channelCountMode	✅ (read only)
channelInterpretation	✅ (read only)

WPT Test

AudioParam

Feature

Feature	Support State
value	✅
automationRate	✅ (read only) (k-rate only)
defaultValue	✅
minValue	✅
maxValue	❌
setValueAtTime (value, startTime)	❌
linearRampToValueAtTime (value, endTime)	❌
exponentialRampToValueAtTime (value, endTime)	❌
setTargetAtTime (target, startTime, timeConstant)	❌
setValueCurveAtTime (values, startTime, duration)	❌
cancelScheduledValues (cancelTime)	❌
cancelAndHoldAtTime (cancelTime)	❌

WPT Test

AudioScheduledSourceNode

Feature

Feature	Support State
onended	❌
start(when)	✅
stop(when)	✅

WPT Test

(No Wpt Test)

BaseAudioContext

Feature

Feature	Support State
destination	✅
sampleRate	✅
currentTime	✅
listener	❌
state	❌
renderQuantumSize	❌
audioWorklet	❌
onstatechange	❌
createAnalyser ()	❌
createBiquadFilter ()	❌
createBuffer (numberOfChannels, length, sampleRate)	✅
createBufferSource ()	✅
createChannelMerger (numberOfInputs)	❌
createChannelSplitter ( numberOfOutputs)	❌
createConstantSource ()	❌
createConvolver ()	❌
createDelay (maxDelayTime)	✅
createDynamicsCompressor ()	❌
createGain ()	✅
createIIRFilter (feedforward, feedback)	❌
createOscillator ()	✅
createPanner ()	❌
createPeriodicWave (real, imag, constraints)	❌
createScriptProcessor( bufferSize, numberOfInputChannels, numberOfOutputChannels)	❌
createStereoPanner ()	❌
createWaveShaper ()	❌
decodeAudioData ( audioData, successCallback, errorCallback)	❌

WPT Test

(No Wpt Test)

OfflineAudioCompletionEvent

Feature

Feature	Support State
constructor (type, eventInitDict)	❌
readonly attribute AudioBuffer renderedBuffer	✅

WPT Test

(No Wpt Test)

OfflineAudioContext

Feature

Feature	Support State
constructor(contextOptions)	✅
constructor(numberOfChannels, length, sampleRate)	✅
startRendering()	✅
resume()	❌
suspend(double suspendTime)	❌
length	✅
oncomplete	❌

WPT Test

Wpt Test	Test State	Description
ctor-offlineaudiocontext.html
current-time-block-size.html
offlineaudiocontext-detached-execution-context.html		do not support document in NodeJS env
startrendering-after-discard.html		do not support document in NodeJS env

OscillatorNode

Feature

Feature	Support State
constructor (context, optional OscillatorOptions options = {})	✅
type	✅
frequency	✅
detune	✅
setPeriodicWave (PeriodicWave periodicWave)	❌

WPT Test

Wpt Test	Test State	Description
ctor-oscillator.html		Not implement PeriodicWave
detune-limiting.html		Not implement ChannelMergerNode
detune-overflow.html
osc-basic-waveform.html		Not implement PeriodicWave
crashtests/stop-before-start.html		Not implement AudioParam.setValueAtTime

DelayNode

Feature

All Support

WPT Test

Wpt Test	Test State	Description
ctor-delay.html
delay-test.html		Not implement ConstantSourceNode
delaynode-channel-count-1.html		Not implement ChannelSplitterNode, ChannelMergerNode, ConstantSourceNode
delaynode-max-default-delay.html
delaynode-max-nondefault-delay.html
delaynode-maxdelay.html
delaynode-maxdelaylimit.html
delaynode-scheduling.html		Not implement AudioParam.setValueAtTime
delaynode.html
maxdelay-rounding.html		Not implement ConstantSourceNode
no-dezippering.html		Not implement ConstantSourceNode,AudioParam.setValueAtTime

GainNode

Feature

All Support

WPT Test

Wpt Test	Test State	Description
ctor-gain.html
gain-basic.html
gain.html
no-dezippering.html		Not implement ConstantSourceNode, ChannelMergerNode

AudioBufferSourceNode

Feature

All Support

WPT Test

Wpt Test	Test State	Description
active-processing.https.html		Not implement AudioWorkletNode
audiobuffersource-basic.html
audiobuffersource-channels.html
audiobuffersource-duration-loop.html
audiobuffersource-ended.html		Not implement AudioScheduledSourceNode.onended
audiobuffersource-grain.html
audiobuffersource-multi-channels.html		Not implement AudioContext.decodeAudioData
audiobuffersource-null.html
audiobuffersource-one-sample-loop.html
audiobuffersource-playbackrate-zero.html		Not implement AudioParam.setValueAtTime
audiobuffersource-start.html
audiosource-onended.html		Not implement AudioScheduledSourceNode.onended
audiosource-time-limits.html
buffer-resampling.html		Not implement ChannelMergerNode
ctor-audiobuffersource.html
note-grain-on-play.html
note-grain-on-timing.html
sample-accurate-scheduling.html
sub-sample-buffer-stitching.html		Not implement ChannelMergerNode
sub-sample-scheduling.html		Not implement ChannelMergerNode