WPT
wpt / webaudio / the-audio-api / the-delaynode-interface / no-dezippering.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 | 19/19 | 6/19 | 19/19 | 15/19 | 6/19 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| # AUDIT TASK RUNNER STARTED. | PASS | PASS | PASS | PASS | PASS | — |
| Executing "test0" | PASS | FAIL | PASS | PASS | FAIL | — |
| Executing "test1" | PASS | FAIL | PASS | PASS | FAIL | — |
| Executing "test2" | PASS | FAIL | PASS | PASS | FAIL | — |
| Audit report | PASS | PASS | PASS | PASS | PASS | — |
| > [test0] Test DelayNode has no dezippering | PASS | PASS | PASS | PASS | PASS | — |
| output[0:63] contains only the constant 0. | PASS | — | PASS | PASS | — | — |
| output[64:127] is identical to the array [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16...]. | PASS | — | PASS | — | — | — |
| output[128:] is identical to the array [113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128...]. | PASS | — | PASS | — | — | — |
| < [test0] All assertions passed. (total 3 assertions) | PASS | — | PASS | — | — | — |
| > [test1] Test value setter and setValueAtTime | PASS | PASS | PASS | PASS | PASS | — |
| .value setter output equals [0,0,0,0,0.15121008455753326,0.314853310585022,0.46955302357673645,0.6109150648117065,0.7349241971969604,0.8380577564239502,0.9173862934112549,0.9706565141677856,0.996355414390564,0.9937527179718018,0.9629223942756653,0.9047403931617737...] with an element-wise tolerance of {"absoluteThreshold":0.000065819,"relativeThreshold":0}. | PASS | — | — | — | — | — |
| .value setter output matches setValueAtTime output is true. | PASS | — | PASS | PASS | — | — |
| < [test1] All assertions passed. (total 2 assertions) | PASS | — | PASS | PASS | — | — |
| > [test2] Test value setter and modulation | PASS | PASS | PASS | PASS | PASS | — |
| With modulation: .value setter output equals [0,0,0,0,0,0,0,0,0,0.9986402988433838,0.9932119846343994,0.9595714807510376,0.898674488067627,0.812250554561615,0.7027547359466553,0.5732971429824829...] with an element-wise tolerance of {"absoluteThreshold":0,"relativeThreshold":0}. | PASS | — | — | — | — | — |
| With modulation: .value setter output matches setValueAtTime output is true. | PASS | — | PASS | PASS | — | — |
| < [test2] All assertions passed. (total 2 assertions) | PASS | — | PASS | PASS | — | — |
| # AUDIT TASK RUNNER FINISHED: 3 tasks ran successfully. | PASS | PASS | PASS | — | PASS | — |
| .value setter output equals [0,0,0,0,0.15114444494247437,0.3147895038127899,0.46949297189712524,0.6108604669570923,0.7348764538764954,0.8380182981491089,0.9173563718795776,0.9706368446350098,0.9963463544845581,0.9937546849250793,0.9629356265068054,0.9047641754150391...] with an element-wise tolerance of {"absoluteThreshold":0.000065819,"relativeThreshold":0}. | — | — | PASS | — | — | — |
| With modulation: .value setter output equals [0,0,0,0,0,0,0,0,0,0.9986401796340942,0.9932118654251099,0.9595715999603271,0.898674488067627,0.8122504949569702,0.7027547359466553,0.5732971429824829...] with an element-wise tolerance of {"absoluteThreshold":0,"relativeThreshold":0}. | — | — | PASS | — | — | — |
| X output[64:127] expected to be equal to the array [NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN...] but differs in 64 places: Index Actual Expected [0] 1.0000000000000000e+0 NaN [1] 2.0000000000000000e+0 NaN [2] 3.0000000000000000e+0 NaN [3] 4.0000000000000000e+0 NaN ...and 60 more errors. | — | — | — | FAIL | — | — |
| X output[128:] expected to be equal to the array [NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN,NaN...] but differs in 16256 places: Index Actual Expected [0] 1.1300000000000000e+2 NaN [1] 1.1400000000000000e+2 NaN [2] 1.1500000000000000e+2 NaN [3] 1.1600000000000000e+2 NaN ...and 16252 more errors. | — | — | — | FAIL | — | — |
| < [test0] 2 out of 3 assertions were failed. | — | — | — | FAIL | — | — |
| .value setter output equals [0,0,0,0,0.15114447474479675,0.3147895336151123,0.46949297189712524,0.6108604669570923,0.7348765134811401,0.8380183577537537,0.9173563718795776,0.9706368446350098,0.9963464140892029,0.9937547445297241,0.9629355669021606,0.9047641754150391...] with an element-wise tolerance of {"absoluteThreshold":0.000065819,"relativeThreshold":0}. | — | — | — | PASS | — | — |
| With modulation: .value setter output equals [0,0,0,0,0,0,0,0,0,0.998640239238739,0.9932119250297546,0.9595715403556824,0.898674488067627,0.8122506141662598,0.7027547359466553,0.5732971429824829...] with an element-wise tolerance of {"absoluteThreshold":0,"relativeThreshold":0}. | — | — | — | PASS | — | — |
| # AUDIT TASK RUNNER FINISHED: 1 out of 3 tasks were failed. | — | — | — | FAIL | — | — |