The following method "sound" works on my PC and it sounds a beep. I am using java 1.5
and Jdeveopler 10.1.3.4 on Windows XP/SP2.

import javax.sound.sampled.*;

public void handleBeep(ReturnEvent returnEvent)
{

    try {
         sound(2000,150);
    } catch (LineUnavailableException lue) {
    System.out.println(lue);
    }
   }


public static void sound(int hz,int msecs) throws LineUnavailableException {
byte[] buf = new byte[msecs*8];

for (int i=0; i<buf.length; i++) {
double angle = i / (8000.0 / hz) * 2.0 * Math.PI;
buf[i] = (byte)(Math.sin(angle) * 80.0);
}

AudioFormat af = new AudioFormat(8000f,8,1,true,false);
SourceDataLine sdl = AudioSystem.getSourceDataLine(af);
sdl.open(af);
sdl.start();
sdl.write(buf,0,buf.length);
sdl.drain();
sdl.close();
}

Edited 3 Years Ago by Nick Evan: Fixed formatting

I'm sorry but are you asking for help? If not, congratulations on getting your beep method to work. If you are asking for help, what is your question?

I'm sorry but are you asking for help? If not, congratulations on getting your beep method to work. If you are asking for help, what is your question?

I have no issue running this method on my PC, but i have an issue running this on Unix/Weblogic server. I got error message. See below:
" No line matching interface SourceDataLine supporting format PCM_SIGNED 8000.0 Hz, 8 bit, mono, 1 bytes/frame, is supported." from Unix (Sun). Any thought ? Thanks.

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