Here is what happened with me: Adjusting default-fragments and default-fragment-size-msec in /etc/pulse/daemon.conf did not work so afterwards I set them back to the original 8 and 10 respectively.
My in /etc/pulse/default.pa already had load-module module-hal-detect tsched=0 So I uncommented the line: #load-module module-alsa-sink and made it load-module module-alsa-sink tsched=0 Then went ahead to change default-fragment-size-msec 25 in /etc/pulse/daemon.conf The sound then started working but it was working and then the video picture was not moving along, it just stayed in one spot or kept jumping, so I figured the original values were best. When I reloaded the videos then I had to go to volume controls and reduce the master front video and increase the PCM. That cut out the crackling. So I went back and again commented #load-module module-alsa-sink tsched=0. It still worked! So for me the real solution was bringing down master front and increasing PCM on volume controls -- Crackling noise after update to pulseaudio https://bugs.launchpad.net/bugs/301755 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs