Videos are not in sync with audio

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Binary package hint: pulseaudio

Hello,
everytime I watch a music video in totem (or with whatever application) I have the problem that the music is not in sync with the video. There is no "big" latency, but still too much to watch the video without noticing the latency. If you see a drummer you see the stick touch the drum and after that you hear it. With pulseaudio and other abstactions the problem becomes bigger and bigger. If I always
I think we need some kind of infrastructure that lets the playback application (e.g. totem) ask the "last" abstraction layer (e.g. pulseaudio) how long the audio latency is. Then Totem for example has to delay the video exactly that long, that both are in sync.

If I as a musician watch music videos I go bad, because this latency is not normal/natural.

I know that this is "Wishlist" and that many applications are affected, but I think this is a necessary step one have to take. It's really annoying.

I also know that there are realtime kernels and other sound servers like jack, but I think it's also important that pulseaudio etc. don't act on the cost of synchron audio/video.
Thanks :)

[Rémi Denis-Courmont (rdenis)]

PulseAudio definitely allows the playback application to query latency (see pa_stream_get_latency() and pa_stream_get_time()), and AFAIK, it has always done so.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 565987

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]