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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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  Description
 
    The NoSound procedure turns off the tone emitted from the
    computer's speaker. A tone is turned on by the Sound procedure.
 
    The tone turned on by Sound remains on until turned off. Execution
    of code after calling Sound does not stop the tone. Unless turned
    off, the tone continues after the end of execution of the program.
 
    To control the duration of the tone, use the Delay or KeyPressed
    routine.
 
    The NoSound procedure is designed for IBM PCs and compatibles.
    Results may differ on other machines.