Making Sounds

[Humphrey Bogart]

Hello. I want to write a program that will generate two audio tones - one high-pitched and one low-pitched - and randomly chose between them and play them repeatedly with a random delay between sounds.

Here is a quickie code I modified that plays one tone with a random delay, using class Toolkit().beep. But what if I want two different tones? I know the java API has a class Synthesizer() and class SamplePlayer(), tho' I don't think I need all the functionality of a synthesizer or a sample-player.

Can anyone suggest other ways to get this done? Thanks.

import java.awt.*;
import java.io.*;

public class timer_beep {
	public static void main(String[] args) throws IOException {
		
		try {
			System.out.println("Countdown has started!");
			Thread.sleep(2000);
			for (int x=10; x>=0; x-- ) {
				System.out.println(x);
				Toolkit.getDefaultToolkit().beep();
				Thread.sleep((long) (Math.random() * 3000));
			}
			Thread.sleep(2000);
			Toolkit.getDefaultToolkit().beep();
			System.out.println("Beep beep testing");
		}
		catch(InterruptedException e){ }
	}
}

[DarrylBurke]

I know the java API has a class Synthesizer() and class SamplePlayer(), tho' I don't think I need all the functionality of a synthesizer or a sample-player.

Can anyone suggest other ways to get this done?

It's no great effort to use Synthesizer, but be aware that the soundbank.gm file distributed with the JDK isn't included with a JRE, so if you need to run your program on a computer which doesn't have a JDK installed you'll need to copy the .../java/jdkXXX/jre/lib/audio folder to .../java/jreN/lib (folders may be different on Linux/MacOS).

An alternative is to obtain a SourceDataLine and write an appropriate byte array to produce the desired tone and duration. Never done that, but I do know it's doable, just a lot more work than simply using a Synthesizer.

db