efaq: Turning the volume down

 
 5.25 How do I turn down the bell volume in Emacs running under X?
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 On X Window system, you can adjust the bell volume and duration for all
 programs with the shell command ‘xset’.
 
    Invoking ‘xset’ without any arguments produces some basic
 information, including the following:
 
      usage:  xset [-display host:dpy] option ...
        To turn bell off:
            -b                b off               b 0
        To set bell volume, pitch and duration:
             b [vol [pitch [dur]]]          b on