public class FinalSounds {
//---------------------------Globals------------------------------
JFrame myFrame;
JPanel centerPanel;
JButton startButton;
AudioInputStream audioInputStream;
//used to handle the audio being written
SourceDataLine sourceDataLine;
//audio is written to this and then is passed to the mixer
byte audioData[] = new byte[16000*4];
AudioFormat audioFormat = getAudioFormat();
//---------------------Main-------------------------------
public static void main(String[] args){
FinalSounds myProgram = new FinalSounds();
myProgram.makeGui();
}
//------------------------------Methods-----------------------
public void makeGui(){
myFrame = new JFrame("FinalSound");
myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
centerPanel = new JPanel();
startButton = new JButton("Start");
startButton.addActionListener(new StartListener());
centerPanel.add(startButton);
myFrame.getContentPane().add(BorderLayout.CENTER,
centerPanel);
myFrame.setLocation(100,100);
myFrame.pack();
myFrame.setVisible(true);
}
private AudioFormat getAudioFormat(){
float sampleRate = 16000.0F;
int sampleSizeInBits = 16;
int channels = 2;
boolean signed = true;
boolean bigEndian = false;
return new
AudioFormat(sampleRate,sampleSizeInBits,channels,signed,bigEndian);
}
public void playSound(){
ByteArrayInputStream byteArrayInputStream = new
ByteArrayInputStream(audioData);
audioInputStream = new
AudioInputStream(byteArrayInputStream,audioFormat,
audioData.length/audioFormat.getFrameSize());
DataLine.Info dataLineInfo = new
DataLine.Info(SourceDataLine.class,audioFormat);
try{
sourceDataLine = (SourceDataLine)
AudioSystem.getLine(dataLineInfo);
}catch(Exception e){
e.printStackTrace();
}
new PlayThread().start();
}
//----------------------------ActionListeners------------------
class StartListener implements ActionListener{
public void actionPerformed(ActionEvent e){
SimpleOsc simpleOsc = new SimpleOsc();
simpleOsc.getSound(audioData);
playSound();
}
}
class PlayThread extends Thread{
byte playBuffer[] = new byte[16000];
public void run(){
try{
sourceDataLine.open(audioFormat);
sourceDataLine.start();
int counter;
while((counter =
audioInputStream.read(playBuffer,0,playBuffer.length)) != -1){
if(counter > 0){
sourceDataLine.write(playBuffer,0,counter);
}
}
sourceDataLine.drain();
sourceDataLine.stop();
sourceDataLine.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
}
public class SimpleOsc {
ByteBuffer byteBuffer;
//takes audioData[]
ShortBuffer shortBuffer;
//turns audioData[] into shortBuffer
int byteLength;
//hold length of audioData[]
public void getSound(byte[] audioData){
byteBuffer = ByteBuffer.wrap(audioData);
shortBuffer = byteBuffer.asShortBuffer();
byteLength = audioData.length;
makeWave();
}
public void makeWave(){
//int channels = 2;
int bytesPerSample = 2;
float sampleRate = 16000.0F;
int sampleLength = byteLength/bytesPerSample;
for(int i = 0; i< sampleLength;i++){
double time = i/sampleRate;
double freq = 440.0;
double sinWave = Math.sin(2*Math.PI*freq*time);
shortBuffer.put((short)(16000*sinWave));
}
}
}
