I am trying to synthesize sound using a byte array.

Here are some snippets:

import javax.sound.sampled.*;
import java.io.*;

AudioFormat audioFormat;
AudioInputStream audioInputStream;
SourceDataLine sourceDataLine;

//variables that set the audio format
float sampleRate = 16000.0F; //allowable: 8000, 16000, 22050, 44100
int sampleSizeInBits = 16; //allowable: 8, 16.
int channels = 1; //allowable: 1 or 2 (mono or stereo)
int bytesPerSamp = 2 * channels; //each channel requires 2 bytes per sample.
boolean signed = true;
boolean bigEndian = false;

int duration = 8;

//changing the size of the array audioData alters the length of the audio
byte audioData[] = new byte[ 16000 * bytesPerSamp * duration ];
int byteLength  = audioData.length;  
double sampLength = byteLength / bytesPerSamp;


<lots of code>


InputStream byteArrayInputStream = new ByteArrayInputStream(audioData);
audioFormat = new AudioFormat(
sampleRate, sampleSizeInBits, channels, signed, bigEndian);  
audioInputStream = new AudioInputStream(
byteArrayInputStream, audioFormat,
audioData.length / audioFormat.getFrameSize() );


DataLine.Info dataLineInfo = new DataLine.Info( SourceDataLine.class, audioFormat);
sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo);

<start a thread, etc.>


I get an error message about the DataLine.Info...

Same happens when I import Ess.

perhaps there is an easier way of doing this??????

Hector

Thanks for your response. I will stop trying to use a byte array, then.

I am not really after any particular kind of sound, just testing the possibilities of Processing in this area. Your suggestion about using a float array and then copying it to a samples array is possible. Can I do the same with your audio library? I will have a closer look at it this weekend.  

I ran into this problem earlier today. Use it this way because it is looking for an object of type 'Class':

DataLine.Info dataLineInfo = new DataLine.Info(
 Class.forName("javax.sound.sampled.SourceDataLine"),
 audioFormat);