Flash player makes buzzing noises

Weird problem here, seems to have surfaced after the latest update to Flash plugin… When an embedded Flash video first starts, I find that it usually makes a very loud buzzing noise before sound starts playing as it is supposed to. The buzz wouldn’t be an issue, except that it can be quite deafening.

Has anyone seen (or rather, heard) this? And is there any fix? FWIW I’m not able to replicate this on any other distribution.

Yes, this is widely reported. It happens to me odd times. Not sure what the solution is though.
Try removing libflashsupport
see if that helps:
Flash Player Problems - openSUSE Forums

Fixed by putting this in /etc/asound.conf:


pcm.pulse {
    type pulse
}
ctl.pulse {
    type pulse
}
pcm.!default {
    type pulse
}
ctl.!default {
    type pulse
}