Have the same issue but have just converted my wav to an ogg and it works OK (although I think that I have tried an ogg earlier. Unfortunately after reading through the posts I also installed the gstreamer plug in for canberra so not sure if that was also involved in the fix.
For new users of Ubuntu I think that using an ogg might be a bit confusing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/292585 Title: Evolution Mail Notification has no sound -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs