ncy (otherwise known as pitch), duration of the beep, and also the volume. currently i have a vi that uses the internal pc speaker, but in order to adjust the volume, is it possible to use the same coding that i have here or what kind of code should i use?Have a look at the example called "Sim Phone.vi" (using the example browser in LabVIEW, search for keyword "phone"). It generates sine waves and outputs them to the sound output device.
Volume and frequencies are adjustable. I am sure you can modify it for your requirements.