I also have this problem, after a clean 11.04 install. VLC was not installed on my system when i noticed a distorted sound in Skype, like the one in the above file, and an echo. My mic was shut off using a hardware switch, so looping sound did not cause this. The microphone also does not work in Skype, but can be looped back to the speakers, using ALSA. I guess thats a different issue
The next day I installed VLC and it also has distorted sound output (again, like the uploaded file). Switching to ALSA ouput in preferences > audio did the trick. Though this way I can't use the surround sound on my Creative X-fi Extreme Gamer card. Skype still has issues.
I also have this problem, after a clean 11.04 install. VLC was not installed on my system when i noticed a distorted sound in Skype, like the one in the above file, and an echo. My mic was shut off using a hardware switch, so looping sound did not cause this. The microphone also does not work in Skype, but can be looped back to the speakers, using ALSA. I guess thats a different issue
The next day I installed VLC and it also has distorted sound output (again, like the uploaded file). Switching to ALSA ouput in preferences > audio did the trick. Though this way I can't use the surround sound on my Creative X-fi Extreme Gamer card. Skype still has issues.