Comment 0 for bug 1907882

paprefs does not find modules, as it uses a hardcoded path.
workaround:
cd /usr/lib
sudo ln -s pulse-13.99.2 pulse-13.99

see
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=531251

strace paprefs 2>&1 |grep /lib/pulse
access("/usr/lib/pulse-13.99/modules/module-esound-protocol-tcp.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-native-protocol-tcp.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-zeroconf-publish.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-zeroconf-discover.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-raop-discover.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-rtp-recv.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-rtp-send.so", F_OK) = -1 ENOENT (No such file or directory)
access("/usr/lib/pulse-13.99/modules/module-rygel-media-server.so", F_OK) = -1 ENOENT (No such file or directory)