Hi,
to help you, we need more information.
Please reproduce the issue on server side under NoMachine and pulseaudio debug level.
To do this go to:
/usr/NX/etc/node.cfg
/usr/NX/etc/server.cfg
and change variable:
SessionLogLevel to 8
In pulseaudio, change the following in /etc/pulse/daemon.conf:
log-level=debug
Logs from pulseaudio will go to /var/log/syslog
Then restart nxserver, start a new session and collect all logs from nx and
pulseaudio and put them on forum.
To retrieve the NoMachine logs, see this guideline:
How to gather debug logs for Support requests
https://www.nomachine.com/DT04M00076
Send to forum[at]nomachine[dot]com.
Additionally, please collect also all results from these two commands and put them too:
pulseaudio -v –log-target=stderr
pacmd
>>> list-sinks