WPT
wpt / webaudio / the-audio-api / the-audiobuffersourcenode-interface / audiobuffersource-output-channel-count.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 | 4/7 | 7/7 | 7/7 | 7/7 | 5/7 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| A source whose buffer was never set outputs one channel | PASS | PASS | PASS | PASS | PASS | — |
| A source with a stereo buffer that was never started outputs one channel | FAIL | PASS | PASS | PASS | PASS | — |
| A playing source outputs the buffer channel count, then one channel at the end of the buffer | PASS | PASS | PASS | PASS | FAIL | — |
| A source that is stopped outputs one channel after the stop time | PASS | PASS | PASS | PASS | PASS | — |
| A source outputs one channel after its duration has elapsed | PASS | PASS | PASS | PASS | FAIL | — |
| A source whose buffer is set to null outputs one channel | FAIL | PASS | PASS | PASS | PASS | — |
| A playing source whose buffer is null outputs one channel | FAIL | PASS | PASS | PASS | PASS | — |