The necessary changes have been made to the mainline PulseAudio sound server code-base that provide greater FreeBSD operating system compatibility. Only a few dozen lines of code were changed in this latest commit for handling of code that was Linux specific.
It's not too much of a big deal though given that there's already been some level of FreeBSD, OpenBSD, and NetBSD support by this LGPLv2.1 sound server. PulseAudio is also compatible with Solaris and Windows operating systems.
The commit improving the PulseAudio FreeBSD support can be found by this Git commit.