I use some private internet video broadcasting and it comes sometimes with a delay. Also, projector that I use also adds a delay to the video. So, I'd like to delay sound a bit in order to put sound in sync with video. I can't change the original video, and it is being viewed via some kind of private video player (flash based I suppose).
So, if I could somehow make a system-wide delay for the sound, it would be really nice.
I know, that a lot of video players do support sound synchronization, but using video player is not an option.
I've tried using pulseaudio for this, but with no success. Currently I've tried using ladspa with pulseaudio, but it seems like it does not see the module-ladspa-sink
:
$ find /usr -name '*ladspa-sink*'
/usr/lib/pulse-4.0/modules/module-ladspa-sink.so
$ pacmd list-modules | grep ladspa
$ pacmd load-module module-ladspa-sink
Welcome to PulseAudio! Use "help" for usage information.
>>> Module load failed.
$ pulseaudio --version
pulseaudio 4.0
$ uname -a
Linux lenovo-g570 3.13.0-52-generic #85-Ubuntu SMP Wed Apr 29 16:44:17 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
Kubuntu, actually.
pavucontrol
installed? On tab "Output devices" -> "Advanced" you can set a latency offset.