WPT
wpt / webaudio / the-audio-api / the-oscillatornode-interface / sub-sample-start.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 | 6/10 | 10/10 | 10/10 | 10/10 | 10/10 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| # AUDIT TASK RUNNER STARTED. | PASS | PASS | PASS | PASS | PASS | — |
| Executing "a-rate oscillator honors sub-sample start offset" | PASS | PASS | PASS | PASS | PASS | — |
| Audit report | PASS | PASS | PASS | PASS | PASS | — |
| > [a-rate oscillator honors sub-sample start offset] | PASS | PASS | PASS | PASS | PASS | — |
| reference[0:5] contains only the constant 0. | PASS | PASS | PASS | PASS | PASS | — |
| a-rate[0:5] contains only the constant 0. | PASS | PASS | PASS | PASS | PASS | — |
| X Max |a-rate - reference| after start is not less than or equal to 0.000001. Got 0.09583589434623718. | FAIL | — | — | — | — | — |
| X a-rate[6:] does not equal [0.09572696685791016,0.283672034740448,0.4612192213535309,0.6218605637550354,0.7597078680992126,0.8697082996368408,0.9478299617767334,0.9912093877792358,0.9982562065124512,0.9687123894691467,0.903660774230957,0.805485725402832,0.6777860522270203,0.5252423286437988,0.35344603657722473,0.16869428753852844...] with an element-wise tolerance of {"absoluteThreshold":0.000001,"relativeThreshold":0}. Index Actual Expected AbsError RelError Test threshold [0] 0.0000000000000000e+0 9.5726966857910156e-2 9.5726966857910156e-2 1.0000000000000000e+0 9.9999999999999995e-7 [1] 1.9057482481002808e-1 2.8367203474044800e-1 9.3097209930419922e-2 3.2818606887210883e-1 9.9999999999999995e-7 [2] 3.7416410446166992e-1 4.6121922135353088e-1 8.7055116891860962e-2 1.8874997584962319e-1 9.9999999999999995e-7 [3] 5.4403841495513916e-1 6.2186056375503540e-1 7.7822148799896240e-2 1.2514404890057010e-1 9.9999999999999995e-7 [4] 6.9397151470184326e-1 7.5970786809921265e-1 6.5736353397369385e-2 8.6528462001902909e-2 9.9999999999999995e-7 ...and 245 more errors. Max AbsError of 9.5835894346237183e-2 at index of 180. [180] 4.2938277125358582e-2 -5.2897617220878601e-2 9.5835894346237183e-2 1.8117242208862843e+0 9.9999999999999995e-7 Max RelError of 1.3862734775505567e+1 at index of 65. [65] -1.0259581357240677e-1 -6.9028893485665321e-3 9.5692924223840237e-2 1.3862734775505567e+1 9.9999999999999995e-7 | FAIL | — | — | — | — | — |
| < [a-rate oscillator honors sub-sample start offset] 2 out of 4 assertions were failed. | FAIL | — | — | — | — | — |
| # AUDIT TASK RUNNER FINISHED: 1 out of 1 tasks were failed. | FAIL | — | — | — | — | — |
| Max |a-rate - reference| after start is less than or equal to 0.000001. | — | PASS | PASS | PASS | PASS | — |
| a-rate[6:] equals [0,0.1905747652053833,0.37416407465934753,0.5440385341644287,0.6939714550971985,0.8184671401977539,0.9129621982574463,0.9739929437637329,0.9993224143981934,0.988021969795227,0.9405059814453125,0.8585160970687866,0.7450575828552246,0.6042892336845398,0.4413708448410034,0.26227420568466187...] with an element-wise tolerance of {"absoluteThreshold":0.000001,"relativeThreshold":0}. | — | PASS | — | — | — | — |
| < [a-rate oscillator honors sub-sample start offset] All assertions passed. (total 4 assertions) | — | PASS | PASS | PASS | PASS | — |
| # AUDIT TASK RUNNER FINISHED: 1 tasks ran successfully. | — | PASS | PASS | PASS | PASS | — |
| a-rate[6:] equals [0.09572696685791016,0.283672034740448,0.4612191915512085,0.6218606233596802,0.7597079277038574,0.8697084188461304,0.947830080986023,0.9912092685699463,0.9982563257217407,0.9687124490737915,0.903660774230957,0.8054857850074768,0.677786111831665,0.5252423286437988,0.35344600677490234,0.16869427263736725...] with an element-wise tolerance of {"absoluteThreshold":0.000001,"relativeThreshold":0}. | — | — | PASS | — | — | — |
| a-rate[6:] equals [0,0.19057482481002808,0.3741641044616699,0.5440384149551392,0.6939715147018433,0.8184670805931091,0.9129621982574463,0.9739928245544434,0.9993224143981934,0.9880220293998718,0.940506100654602,0.8585161566734314,0.7450577616691589,0.6042895317077637,0.4413711428642273,0.26227468252182007...] with an element-wise tolerance of {"absoluteThreshold":0.000001,"relativeThreshold":0}. | — | — | — | — | PASS | — |
| a-rate[6:] equals [0,0.1905747503042221,0.37416407465934753,0.5440385341644287,0.6939714550971985,0.8184671401977539,0.9129621982574463,0.9739929437637329,0.9993223547935486,0.9880220293998718,0.9405060410499573,0.8585162162780762,0.7450577616691589,0.6042895317077637,0.44137126207351685,0.26227471232414246...] with an element-wise tolerance of {"absoluteThreshold":0.000001,"relativeThreshold":0}. | — | — | — | PASS | — | — |