WPT
wpt / webaudio / the-audio-api / the-stereopanner-interface / stereopannernode-basic.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 | 15/15 | 15/15 | 15/15 | 15/15 | 15/15 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| # AUDIT TASK RUNNER STARTED. | PASS | PASS | PASS | PASS | PASS | — |
| Executing "test" | PASS | PASS | PASS | PASS | PASS | — |
| Audit report | PASS | PASS | PASS | PASS | PASS | — |
| > [test] Attributes and basic functionality of StereoPannerNode | PASS | PASS | PASS | PASS | PASS | — |
| panner.numberOfInputs is equal to 1. | PASS | PASS | PASS | PASS | PASS | — |
| panner.numberOfOutputs is equal to 1. | PASS | PASS | PASS | PASS | PASS | — |
| panner.pan.defaultValue is equal to 0. | PASS | PASS | PASS | PASS | PASS | — |
| panner.pan.value = 1.0 did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| panner.pan.value is equal to 1. | PASS | PASS | PASS | PASS | PASS | — |
| panner.channelCount = 1 did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| panner.channelCount = 3 threw NotSupportedError: "Failed to set the 'channelCount' property on 'AudioNode': The channelCount provided (3) is outside the range [1, 2].". | PASS | — | — | — | — | — |
| panner.channelCountMode = "explicit" did not throw an exception. | PASS | PASS | PASS | PASS | PASS | — |
| panner.channelCountMode = "max" threw NotSupportedError: "Failed to set the 'channelCountMode' property on 'AudioNode': StereoPanner: 'max' is not allowed". | PASS | — | — | — | — | — |
| < [test] All assertions passed. (total 9 assertions) | PASS | PASS | PASS | PASS | PASS | — |
| # AUDIT TASK RUNNER FINISHED: 1 tasks ran successfully. | PASS | PASS | PASS | PASS | PASS | — |
| panner.channelCount = 3 threw NotSupportedError: "AudioNode.channelCount setter: 3 is greater than 2". | — | PASS | — | — | — | — |
| panner.channelCountMode = "max" threw NotSupportedError: "AudioNode.channelCountMode setter: Cannot set channel count mode to "max"". | — | PASS | — | — | — | — |
| panner.channelCount = 3 threw NotSupportedError: "StereoPannerNode's channelCount cannot be greater than 2.". | — | — | PASS | — | — | — |
| panner.channelCountMode = "max" threw NotSupportedError: "StereoPannerNode's channelCountMode cannot be max.". | — | — | PASS | — | — | — |
| panner.channelCount = 3 threw NotSupportedError: "The operation is not supported.". | — | — | — | — | PASS | — |
| panner.channelCountMode = "max" threw NotSupportedError: "The operation is not supported.". | — | — | — | — | PASS | — |
| panner.channelCount = 3 threw NotSupportedError: "StereoPannerNode does not support channel count greater than 2". | — | — | — | PASS | — | — |
| panner.channelCountMode = "max" threw NotSupportedError: "StereoPannerNode does not support 'max' as channelCountMode.". | — | — | — | PASS | — | — |