Redirect Linux sound to DLNA receivers using PulseAudio

Conclusions

PulseAudio DLNA works, but it is not a panacea for any conceivable task. Because of the delay of about half a second, or a little more, caused by the buffer when playing back via the network [7], the field of applications is limited to streaming music or other audio-only media on DLNA-capable stereo systems or AV receivers. If you try to beam the sound from a film or computer game to a stereo system wirelessly via DLNA, you need to accept the fact that the sound and picture will be out of sync.

High-performance video players such as VLC provide a remedy for this. They give you the option of accelerating the sound playback in relation to the movie under Tools | Track Synchronization | Audio Track Synchronization (Figure 4). The picture and sound are then in sync despite the delay caused by streaming. However, this function is only available with very few media players, and certainly not with popular computer games. l

Figure 4: The VLC media player delays or accelerates the sound track relative to the picture, as required. This allows you to offset the delay caused by streaming.