Install pulseaudio-module-zeroconf by entering the following commands in the terminal:
sudo apt update sudo apt install pulseaudio-module-zeroconf
Description:
Zeroconf module for PulseAudio sound server
PulseAudio, previously known as Polypaudio, is a sound server for POSIX and WIN32 systems. It is a drop in replacement for the ESD sound server with much better latency, mixing/re-sampling quality and overall architecture. . This module enables PulseAudio to publish available sinks and sources via zeroconf (aka. Avahi, mdns). . The module is called module-zeroconf-publish.
Homepage: http://www.pulseaudio.org
Version: 1:11.1-1ubuntu7
Section: universe/sound