Web Audio API has severe performance issues with WebM Vorbis

Fixed, not yet flighted Issue #15973650


Feb 16, 2018
This issue is public.
Found in build #
Reported by 1 person

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Steps to reproduce

After installing “Web Media Extensions” from the Windows Store with Edge 16 (…/15935876/)

  1. Go to https://www.scirra.com/labs/audioCodecTests/

Observed result:
The Edge tab gets stuck for ~45 seconds while waiting on a background task. Once the background task finishes, the page recovers, the tests have all passed, and everything is good. The performance issue does not repro if the WebM Vorbis test is removed.

Expected result:
The page should quickly finish loading and all tests should have passed.


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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Danny C.”

      Changed Status to “Confirmed”

      Changed Assigned To from “Danny C.” to “Vlad A.”

      Changed Assigned To from “Vlad A.” to “Brian B.”

      Changed Status from “Confirmed”

      Changed Assigned To from “Brian B.” to “Vlad A.”

      Changed Status to “Confirmed”

      Changed Status from “Confirmed” to “In progress”

      Changed Assigned To from “Vlad A.” to “Brian B.”

      Changed Status from “In progress” to “Fixed”

      Changed Status from “Fixed” to “Fixed, not yet flighted”

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