At the moment we don't have a feature to turn off sound effects from within Pabau.
However, there is a method you can use to mute certain tabs in chrome.
This is useful if you use your computer to play music into your speaker system and you don't want the Pabau sound effects to be heard.
In chrome, open another tab and paste this text into the address bar:
Restart Chrome and now you can mute individual tabs by right clicking on the tab and selecting mute.