Finally found the reason why. There were multiple active-input-changed signals being sent which was causing the stop and create monitoring methods to get muddled. Fixed in commit http://bazaar.launchpad.net/~cjcurran/+junk/soundnua-gtk-warnings/revision/19
** Changed in: gnome-control-center (Ubuntu) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/987626 Title: peak detection on input tab doubles up on level To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/987626/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs