See Audio::Beep,
then bust out your favorite sound recording program, grab a microphone, and record your computer as it beeps :)
or
checkout morsify, and generate a wav file with the tone of the desired pitch/duration
(there are other examples of this type thing around here, but there is also Acme::Morse::Audible)...
MJDsays "you can't just make shit up and expect the computer to know what you mean, retardo!"