WPT
wpt / webaudio / the-audio-api / the-iirfilternode-interface / iirfilter-getFrequencyResponse.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@2c385f65e, 2026-09-04) | 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 | 3/3 | 3/3 | 3/3 | 0/3 | 1/3 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| 1-pole IIR getFrequencyResponse() matches analytic response | PASS | PASS | PASS | FAIL | FAIL | — |
| IIR filter equivalent to biquad has matching frequency response | PASS | PASS | PASS | FAIL | FAIL | — |
| Out-of-range frequency values yield NaN responses | PASS | PASS | PASS | FAIL | PASS | — |