Comment 34 for bug 112948

I'm also having this problem. I can't call anyone due to bug #332543, but I get the same problem when I try to test the sound events in the sound events preferences: ekiga uses 100% cpu. The UI is still responsive, but when I try to quit ekiga that doesn't work until I kill it manually.
Same problem when run under pasuspender.
If I kill pulseaudio first, playing the test sounds works more or less, though there is still sometimes crackling while playing a test sound.
Skype and other audio work fine.

Ubuntu 9.10, Ekiga 3.2.5, snd_hda_intel driver
soundcard (according to lspci): Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)