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When trying to talk on skype or record sound in audacity, the built-in microphone has a lot of crackling interferences, rendering input intelligible. When running audacity with pasuspender -- audacity, recording is fine.

I can't do that with skype, though, as it still tries to use pulseaudio (which is suspended, of course, but still visible to skype obviously), and produces no sound at all.

So I would need a way to make pulseaudio accessing my microphone in the right way. I already tried running PULSE_SERVER /usr/bin/skype to force skype to use alsa, but it freezes...

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Try to choose "Analog Output" rather than a "Duplex" profile. –  Takkat Dec 6 '13 at 11:45

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