I was wondering if there was an easy way of replacing pulseaudio with alsa. Pulseaudio is the biggest problem I am currently having with Ubuntu and I really want these problems to end.
If what you'd like to do is disable PulseAudio, the following steps should do it:
sudo sh -c "echo autospawn = no|tee -a /etc/pulse/client.conf" touch ~/.pulse_a11y_nostart sudo chmod 600 /usr/bin/pulse-session killall pulseaudio
Note that you don't have to remove any PulseAudio-related packages to disable it.
If you'd like to temporarily disable PulseAudio, see the answer to the relevant question.
I suggest you try this tutorial to fix Pulseaudio : HOWTO: PulseAudio Fixes & System-Wide Equalizer Suppor
Just do the Part A and reboot, I have done this on several differents computer that have problems with PA and it have work all the times.