[Webkit-unassigned] [Bug 214964] New: [GTK] Audio lag and timing issues with Tone.js

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=214964

            Bug ID: 214964
           Summary: [GTK] Audio lag and timing issues with Tone.js
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: christopherliu at sorcero.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 405564

  --> https://bugs.webkit.org/attachment.cgi?id=405564&action=review

Testcase

Overview: Audio produced by the WebAudio framework Tone.js lags, stutters, and sometimes does not play at all when using Webkit2GTK or on the GNOME Web browser.

Steps to reproduce:
– Run main.py in the testcase
– Press the play button

Actual results: Notes play unpredictably, with different timing each time.

Expected results: Each note should be played 0.5 sec after another consistently.

Build 2020-07-30 on VirtualBox Fedora 32 (bug also occurs outside of a VM)

Doesn't occur on other web browsers like Chrome.

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