Welcome to Manjaro. What is the error message?
Please try the following:
No audio after Pulseaudio v15 update
Try clearing the databases in your home folder of any old settings by executing:
rm ~/.config/pulse/*.tdb ~/.config/pulse/cookie
reboot afterwards
Also a bit more information about your system would very much help others to help you. Please read the following and post inxi output:
3 Likes