[Webkit-unassigned] [Bug 180078] New: Reduced volume across OS, after acquiring a mic stream and unplugging headphones.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180078

            Bug ID: 180078
           Summary: Reduced volume across OS, after acquiring a mic stream
                    and unplugging headphones.
           Product: WebKit
           Version: Safari 11
          Hardware: Macintosh
                OS: macOS 10.12
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: philipp.weissensteiner at visocon.com
                CC: youennf at gmail.com

Hi,

Apologies if the title isn't clear. Here are the steps to reproduce the issue we're experiencing:
Be careful to not turn volume all the way up if you're testing this.

1. Plug headphones into Mac
2. Visit https://webrtc.github.io/samples/src/content/getusermedia/volume/
3. Unplug headphones
4. Plug headphones into Mac

The OS is now playing audio with reduced volume across the system, until I quit Safari.
At which point audio "jumps back" to the original volume, which almost gave me a heart attack.

Tested on:

- MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
- MacBook Pro (Retina, 15-inch, Mid 2014)
- MacBook Pro (Retina, 13-inch, Early 2015)

Let me know if you need more information.
Have a good week.

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