Can't you turn the PC volume off? You can under Windows
Mute Chess.com?

You can disable sound for turn based on this page
http://www.chess.com/home/echess_settings.html
and live chess on this page
http://www.chess.com/home/livechess_settings.html
(remember to scroll down and save preferences)
You can also disable sound in live chess by clicking on the gear wheel icon to the right of the chat tab, then on Style, un-check 'Enable Sound' from there and save settings

Thanks! The instructions mentioned by Kohai worked perfectly (:
I am playing my music on iTunes on a Macbook. I remember windows had the option to manage individual volume levels for different applications, one big advantage windows has over mac.
Thanks again!

when i get muted how many hours before i can chat again?
it would be really great if you could help me
Kindest regards
I got muted just cause i was complaining that a group was inapropriate and was getting out of control they don't even get chat warns and here i got muted they are the ones that are ment to be muted
I really enjoy listening to music while playing chess, however, the sound each move produces annoys me beyond contempt. Does anyone know how to mute the sound?
Thanks in advance for any help and good chess for everyone!