I have the same problem, a loud sound on a regular interval, though I'd call it more like a whistling sound. The only workaround for me is to use mplayer or VLC and set their output directly to ALSA HDMI, instead of pulse. Bypassing pulse seems to fix the problem, but I can't do it for Chrome so I have no way to watch Youtube videos without that sound.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/815518 Title: HDMI Sound Randomly Makes Popping Sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/815518/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs