Hello, when I watch either DVB with kaffeine or a movie with VLC, either after some time or right after starting the movie, video and audio is out of sync. Generally the audio is behind video, thus people have moved their mouth, but their speech lags behind. The lag is not dramatic, but it is enough to be recognized and reduces the comfort while watching. I run pulseaudio with realtime priority. I have these values in /etc/security/limits.conf: malte_gell - nice -15 malte_gell - rtprio 99 And these are my settings in daemon.conf: daemonize = no fail = yes allow-module-loading = yes allow-exit = yes use-pid-file = yes system-instance = no enable-shm = yes lock-memory = no cpu-limit = no high-priority = yes nice-level = -11 realtime-scheduling = yes realtime-priority = 5 resample-method = speex-float-7 enable-remixing = yes enable-lfe-remixing = no default-fragments = 10 default-fragment-size-msec = 100 What values could I tune to improve the situation? I run pulseaudio 3.0.1 with ALSA 1.0.26. Thanks Malte