If I run some GCode programs, mach3 generates gong souns quite often ( almoust every input Gcode line ... ) .Its same signal as you can hear sometime (why not every time ?) if you press Mach3 Reset button.
I see that this sound is generated every time when Status text line is changed ( my G code input lines are with comments  in brackets and these comments are showed there in status line , however, curious is that not all comments, just some of them ....) .
What is the meaning of this - is it some kind of error message this song, or notification that status is changed ? Should I ignore it ? Is there any way to switch it off in Mach Setup  ?

Take out the comments from your G Code