Can I generate different beeps using the computer speaker or is there only one [duplicate]

问题

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Closed 8 years ago.

Possible Duplicate:
How can I make the computer beep in C#?

Can the computer beep at different pitches or is there only one?

回答1:

The Console.Beep method has two overloads: the first version is the default beep, and the second version receives two arguments—the frequency and the duration in milliseconds. Try following program to sample different beeps your c# code can make.

using System;

class Program
{
    static void Main()
    {

    for (int i = 37; i <= 32767; i += 200)
    {
        Console.Beep(i, 100);
    }
    }
}

回答2:

for example,

Console.Beep(5000, 1000);

Will beep @ 5000 MHz for 1 second

You can play with the HZ to control the tone

More on beep here.

回答3:

public static void Beep(
    int frequency,
    int duration)

You can change the frequency

The frequency of the beep, ranging from 37 to 32767 hertz.

回答4:

According to the kernel32.Beep API, you can set the frequency manually: http://pinvoke.net/default.aspx/kernel32.Beep

dwFreq: Specifies the frequency, in hertz, of the sound. This parameter must be in the range 37 through 32767 (0x25 through 0x7FFF).

回答5:

You can change the frequency.

See a good example. You can even play musics. Check this link

来源：https://stackoverflow.com/questions/8414707/can-i-generate-different-beeps-using-the-computer-speaker-or-is-there-only-one