Sound procedure PC Speaker sound routines

Unit

acUtils

Declaration

procedure Sound(Hz: Word);

Description

The Sound procedure starts the internal speaker. Hz specifies the frequency of the emitted sound in hertz. The speaker continues until explicitly turned off by a call to NoSound.

Example

The following program fragment emits a 440-hertz tone for half a second:

uses acUtils;

begin

Sound(440);        { Beep }

Delay(500);        { For 500 ms }

NoSound;           { Relief! }

end.

See also

NoSound and Delay procedures.