System beep in Windows 7

Question

Is it possible to make an audio signal that always plays in the speakers so that people can hear it regardless of whether the headset is connected?

I am using C # wpf.Net 4.0 and of course windows 7

Answer 1

Is it possible to make an audio signal that always plays in the speakers so that people can hear it regardless of whether the headset is connected?

Starting with Windows 7 and in 64-bit versions of previous operating systems, the answer is no, you cannot always make a hardware signal. Larry Osterman explains why .

You may have a beep, but the main functionality has moved to the Windows audio subsystem; so it will play through the headphones if they are connected. As far as I know, there is no way to force an audio signal in all cases in modern operating systems.

You can still beep using Console.Beep() .

Answer 2

Declare it somewhere:

 [System.Runtime.InteropServices.DllImport("kernel32 .dll")] private static extern bool Beep(int freq, int dur); 

Then name it like this:

 Beep(440, 1000); // Concert A, for 1 second