A quick search revealed no fallback to Alsa built into libpulse. Here is the discussion about Chromium where they are talking about doing their own fallback to

A quick search revealed no fallback to Alsa built into libpulse. Here is the discussion about Chromium where they are talking about doing their own fallback to Alsa: * https://bugs.chromium.org/p/chromium/issues/detail?id=178101 https://bugs.chromium.org/p/chromium/issues/detail?id=178101