Try adding the desktop user(s) to 'pulse-rt' group and then relogin.
$ sudo adduser $USER pulse-rt (quit your gdm/kdm session)
Output of command 'groups' should contain pulse-rt group.
Does the stuttering still occur?
Try adding the desktop user(s) to 'pulse-rt' group and then relogin.
$ sudo adduser $USER pulse-rt
(quit your gdm/kdm session)
Output of command 'groups' should contain pulse-rt group.
Does the stuttering still occur?