[alsa-devel] External IO plugin question

Hi. I am working on ALSA external IO plugin now. Its function is similar to the pulse plugin. A server sends sound to multiple clients.

When I play sound with my plugin, the sound is played really fast. It means that it is like playing with x5 or x10 speed. I did not write any code for synchronization between server and client. To try to fix it, I saw the pulse plugin. I guess that it uses some synchronization code (poll_descriptors), but I am not sure.

My questions are: 1. Which part should take care of playing sound properly in this architecture, server or client? 2. Do I need to deal with synchronization between server and client? 3. If 2 is yes, is there any hints to do this with multiple clients?

Thank you in advance.