[Webkit-unassigned] [Bug 195869] New: Volume reduced after plugin / plug out headphone

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=195869

            Bug ID: 195869
           Summary: Volume reduced after plugin / plug out headphone
           Product: WebKit
           Version: Safari 12
          Hardware: Macintosh
                OS: macOS 10.13
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jimmy.xu at ringcentral.com
                CC: youennf at gmail.com

Volume of whole Mac OS reduced automatically after pluin / plug out headphone during WebRTC call
Reproduce steps:
1. Goto WebRTC example site: appr.tc
2. Start a WebRTC meeting
3. Other device join the meeting and make sure both side can hear / see each other.
4. Make sure the system audio volume is max.
5. Plug in headphone
6. Plug out headphone

Actual behavior:
After step 6. The volume is reduced a lot and user can hardly hear other side.

Expected behavior:
The volume should not be affected after step 6.

Mac OS: High Sierra. 10.13.6
Safari: Version 12.0 (13606.2.11)

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