Intermittent fail in /webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html

[jdm]

  ▶ Unexpected subtest result in /webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html:
  │ FAIL [expected PASS] X SNR (21.50436285446287 dB) is not greater than or equal to 65.737. Got 21.50436285446287.
  │   → assert_true: expected true got false
  │ 
  │ _logFailed/<@http://web-platform.test:8000/webaudio/resources/audit.js:50:7
  │ Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:1587:20
  │ test@http://web-platform.test:8000/resources/testharness.js:544:21
  │ _logFailed@http://web-platform.test:8000/webaudio/resources/audit.js:49:5
  │ _finalize@http://web-platform.test:8000/webaudio/resources/audit.js:215:9
  │ _assert@http://web-platform.test:8000/webaudio/resources/audit.js:228:7
  │ beGreaterThanOrEqualTo@http://web-platform.test:8000/webaudio/resources/audit.js:577:14
  └ @http://web-platform.test:8000/webaudio/the-audio-api/the-audiobuffersourcenode-interface/sub-sample-buffer-stitching.html:78:19