WPT
wpt / webaudio / the-audio-api / the-oscillatornode-interface / ctor-oscillator.html
Spec: Web Audio API ↗
Runs: Chrome 155.0.8041.0 (wpt@4a01b83e3, 2026-09-04) | Firefox 157.0a1 (wpt@e7122b73f, 2026-09-04) | Safari 251 preview (wpt@2c385f65e, 2026-09-04) | Ladybird 1.0-70fb3 (wpt@4a01b83e3, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 62/62 | 62/62 | 62/62 | 62/62 | 62/62 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| # AUDIT TASK RUNNER STARTED. | PASS | PASS | PASS | PASS | PASS | — |
| Executing "initialize" | PASS | PASS | PASS | PASS | PASS | — |
| Executing "invalid constructor" | PASS | PASS | PASS | PASS | PASS | — |
| Executing "default constructor" | PASS | PASS | PASS | PASS | PASS | — |
| Executing "test AudioNodeOptions" | PASS | PASS | PASS | PASS | PASS | — |
| Executing "constructor options" | PASS | PASS | PASS | PASS | PASS | — |
| Audit report | PASS | PASS | PASS | PASS | PASS | — |
| > [initialize] | PASS | PASS | PASS | PASS | PASS | — |
| context = new OfflineAudioContext(...) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| < [initialize] All assertions passed. (total 1 assertions) | PASS | PASS | PASS | PASS | PASS | — |
| > [invalid constructor] | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode() threw TypeError: "Failed to construct 'OscillatorNode': 1 argument required, but only 0 present.". | PASS | — | — | — | — | — |
| new OscillatorNode(1) threw TypeError: "Failed to construct 'OscillatorNode': parameter 1 is not of type 'BaseAudioContext'.". | PASS | — | — | — | — | — |
| new OscillatorNode(context, 42) threw TypeError: "Failed to construct 'OscillatorNode': The provided value is not of type 'OscillatorOptions'.". | PASS | — | — | — | — | — |
| < [invalid constructor] All assertions passed. (total 3 assertions) | PASS | PASS | PASS | PASS | PASS | — |
| > [default constructor] | PASS | PASS | PASS | PASS | PASS | — |
| node0 = new OscillatorNode(context) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node0 instanceof OscillatorNode is equal to true. | PASS | PASS | PASS | PASS | PASS | — |
| node0.numberOfInputs is equal to 0. | PASS | PASS | PASS | PASS | PASS | — |
| node0.numberOfOutputs is equal to 1. | PASS | PASS | PASS | PASS | PASS | — |
| node0.channelCount is equal to 2. | PASS | PASS | PASS | PASS | PASS | — |
| node0.channelCountMode is equal to max. | PASS | PASS | PASS | PASS | PASS | — |
| node0.channelInterpretation is equal to speakers. | PASS | PASS | PASS | PASS | PASS | — |
| node0.type is equal to sine. | PASS | PASS | PASS | PASS | PASS | — |
| node0.frequency.value is equal to 440. | PASS | PASS | PASS | PASS | PASS | — |
| < [default constructor] All assertions passed. (total 9 assertions) | PASS | PASS | PASS | PASS | PASS | — |
| > [test AudioNodeOptions] | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelCount: 17}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelCount is equal to 17. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelCount: 0}) threw NotSupportedError: "Failed to construct 'OscillatorNode': The channel count provided (0) is outside the range [1, 32].". | PASS | — | — | — | — | — |
| new OscillatorNode(c, {channelCount: 99}) threw NotSupportedError: "Failed to construct 'OscillatorNode': The channel count provided (99) is outside the range [1, 32].". | PASS | — | — | — | — | — |
| new OscillatorNode(c, {channelCountMode: "max"} did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelCountMode is equal to max. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelCountMode: "max"}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelCountMode after valid setter is equal to max. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelCountMode: "clamped-max"}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelCountMode after valid setter is equal to clamped-max. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelCountMode: "explicit"}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelCountMode after valid setter is equal to explicit. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelCountMode: "foobar"} threw TypeError: "Failed to construct 'OscillatorNode': Failed to read the 'channelCountMode' property from 'AudioNodeOptions': The provided value 'foobar' is not a valid enum value of type ChannelCountMode.". | PASS | — | — | — | — | — |
| node.channelCountMode after invalid setter is equal to explicit. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelInterpretation: "speakers"}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelInterpretation is equal to speakers. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelInterpretation: "discrete"}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node.channelInterpretation is equal to discrete. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {channelInterpretation: "foobar"}) threw TypeError: "Failed to construct 'OscillatorNode': Failed to read the 'channelInterpretation' property from 'AudioNodeOptions': The provided value 'foobar' is not a valid enum value of type ChannelInterpretation.". | PASS | — | — | — | — | — |
| node.channelInterpretation after invalid setter is equal to discrete. | PASS | PASS | PASS | PASS | PASS | — |
| < [test AudioNodeOptions] All assertions passed. (total 20 assertions) | PASS | PASS | PASS | PASS | PASS | — |
| > [constructor options] | PASS | PASS | PASS | PASS | PASS | — |
| node1 = new OscillatorNode(c, {"type":"sawtooth","detune":7,"frequency":918}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| node1.type is equal to sawtooth. | PASS | PASS | PASS | PASS | PASS | — |
| node1.detune.value is equal to 7. | PASS | PASS | PASS | PASS | PASS | — |
| node1.frequency.value is equal to 918. | PASS | PASS | PASS | PASS | PASS | — |
| node1.channelCount is equal to 2. | PASS | PASS | PASS | PASS | PASS | — |
| node1.channelCountMode is equal to max. | PASS | PASS | PASS | PASS | PASS | — |
| node1.channelInterpretation is equal to speakers. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {"type":"sine","periodicWave":{}}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {"type":"custom"}) threw InvalidStateError: "Failed to construct 'OscillatorNode': A PeriodicWave must be specified if the type is set to "custom"". | PASS | — | — | — | — | — |
| new OscillatorNode(c, {"type":"custom","periodicWave":{}}) did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode(c, {periodicWave: null} threw TypeError: "Failed to construct 'OscillatorNode': Failed to read the 'periodicWave' property from 'OscillatorOptions': Failed to convert value to 'PeriodicWave'.". | PASS | — | — | — | — | — |
| < [constructor options] All assertions passed. (total 11 assertions) | PASS | PASS | PASS | PASS | PASS | — |
| # AUDIT TASK RUNNER FINISHED: 5 tasks ran successfully. | PASS | PASS | PASS | PASS | PASS | — |
| new OscillatorNode() threw TypeError: "OscillatorNode constructor: At least 1 argument required, but only 0 passed". | — | PASS | — | — | — | — |
| new OscillatorNode(1) threw TypeError: "OscillatorNode constructor: Argument 1 is not an object.". | — | PASS | — | — | — | — |
| new OscillatorNode(context, 42) threw TypeError: "OscillatorNode constructor: Value can't be converted to a dictionary.". | — | PASS | — | — | — | — |
| new OscillatorNode(c, {channelCount: 0}) threw NotSupportedError: "OscillatorNode constructor: Channel count (0) must be in the range [1, max supported channel count]". | — | PASS | — | — | — | — |
| new OscillatorNode(c, {channelCount: 99}) threw NotSupportedError: "OscillatorNode constructor: Channel count (99) must be in the range [1, max supported channel count]". | — | PASS | — | — | — | — |
| new OscillatorNode(c, {channelCountMode: "foobar"} threw TypeError: "OscillatorNode constructor: 'foobar' (value of 'channelCountMode' member of AudioNodeOptions) is not a valid value for enumeration ChannelCountMode.". | — | PASS | — | — | — | — |
| new OscillatorNode(c, {channelInterpretation: "foobar"}) threw TypeError: "OscillatorNode constructor: 'foobar' (value of 'channelInterpretation' member of AudioNodeOptions) is not a valid value for enumeration ChannelInterpretation.". | — | PASS | — | — | — | — |
| new OscillatorNode(c, {"type":"custom"}) threw InvalidStateError: "OscillatorNode constructor: Can't set type to "custom"". | — | PASS | — | — | — | — |
| new OscillatorNode(c, {periodicWave: null} threw TypeError: "OscillatorNode constructor: 'periodicWave' member of OscillatorOptions is not an object.". | — | PASS | — | — | — | — |
| new OscillatorNode() threw TypeError: "Not enough arguments". | — | — | PASS | — | — | — |
| new OscillatorNode(1) threw TypeError: "Argument 1 ('context') to the OscillatorNode constructor must be an instance of BaseAudioContext". | — | — | PASS | — | — | — |
| new OscillatorNode(context, 42) threw TypeError: "Type error". | — | — | PASS | — | — | — |
| new OscillatorNode(c, {channelCount: 0}) threw NotSupportedError: "Channel count cannot be 0". | — | — | PASS | — | — | — |
| new OscillatorNode(c, {channelCount: 99}) threw NotSupportedError: "Channel count exceeds maximum limit". | — | — | PASS | — | — | — |
| new OscillatorNode(c, {channelCountMode: "foobar"} threw TypeError: "Type error". | — | — | PASS | — | — | — |
| new OscillatorNode(c, {channelInterpretation: "foobar"}) threw TypeError: "Type error". | — | — | PASS | — | — | — |
| new OscillatorNode(c, {"type":"custom"}) threw InvalidStateError: "Must provide periodicWave when using custom type.". | — | — | PASS | — | — | — |
| new OscillatorNode(c, {periodicWave: null} threw TypeError: "Type error". | — | — | PASS | — | — | — |
| new OscillatorNode() threw TypeError: "Not enough arguments to "OscillatorNode.constructor".". | — | — | — | — | PASS | — |
| new OscillatorNode(1) threw TypeError: "Value is not an object.". | — | — | — | — | PASS | — |
| new OscillatorNode(context, 42) threw TypeError: "Value is not an object.". | — | — | — | — | PASS | — |
| new OscillatorNode(c, {channelCount: 0}) threw NotSupportedError: "The operation is not supported.". | — | — | — | — | PASS | — |
| new OscillatorNode(c, {channelCount: 99}) threw NotSupportedError: "The operation is not supported.". | — | — | — | — | PASS | — |
| new OscillatorNode(c, {channelCountMode: "foobar"} threw TypeError: "'foobar' is not a valid enum value for enumeration 'ChannelCountMode'.". | — | — | — | — | PASS | — |
| new OscillatorNode(c, {channelInterpretation: "foobar"}) threw TypeError: "'foobar' is not a valid enum value for enumeration 'ChannelInterpretation'.". | — | — | — | — | PASS | — |
| new OscillatorNode(c, {"type":"custom"}) threw InvalidStateError: "Can not set oscillator type to custom without providing a periodic wave". | — | — | — | — | PASS | — |
| new OscillatorNode(c, {periodicWave: null} threw TypeError: "Value is not an object.". | — | — | — | — | PASS | — |
| new OscillatorNode() threw TypeError: "OscillatorNode() needs one argument". | — | — | — | PASS | — | — |
| new OscillatorNode(1) threw TypeError: "Not an object of type BaseAudioContext". | — | — | — | PASS | — | — |
| new OscillatorNode(context, 42) threw TypeError: "Not an object of type OscillatorOptions". | — | — | — | PASS | — | — |
| new OscillatorNode(c, {channelCount: 0}) threw NotSupportedError: "Invalid channel count". | — | — | — | PASS | — | — |
| new OscillatorNode(c, {channelCount: 99}) threw NotSupportedError: "Invalid channel count". | — | — | — | PASS | — | — |
| new OscillatorNode(c, {channelCountMode: "foobar"} threw TypeError: "Invalid value 'foobar' for enumeration type 'ChannelCountMode'". | — | — | — | PASS | — | — |
| new OscillatorNode(c, {channelInterpretation: "foobar"}) threw TypeError: "Invalid value 'foobar' for enumeration type 'ChannelInterpretation'". | — | — | — | PASS | — | — |
| new OscillatorNode(c, {"type":"custom"}) threw InvalidStateError: "Oscillator node type 'custom' requires PeriodicWave to be provided". | — | — | — | PASS | — | — |
| new OscillatorNode(c, {periodicWave: null} threw TypeError: "Not an object of type PeriodicWave". | — | — | — | PASS | — | — |