Aplicativo desenvolvido mediante a pesquisa e estudo da API Java Sound ao qual encontrei um estudo/tutorial sobre a mesma de Richard G. Baldwin onde você pode encontra o fonte original aqui http://cnx.org/content/m45693/latest/Java2014.htm e um outro exemplo aqui http://cnx.org/content/m45693/latest/Java2008.htm do mesmo autor. O aplicativo tem o objetivo de gravar áudio capturado do microfone do computador e salvar nos formatos: AIFFC, AIFF, AU, SND e WAVE por default já grava em com a extensão WAVE, também voce pode fazer um teste e se gostar salvar esse teste em WAVE.
Aqui estão os códigos fontes:
/**File AudioRecorder02.java
Copyright 2003, Richard G. Baldwin
This program demonstrates the capture of audio
data from a microphone into an audio file.
A GUI appears on the screen containing the
following buttons:
Capture
Stop
In addition, five radio buttons appear on the
screen allowing the user to select one of the
following five audio output file formats:
AIFC
AIFF
AU
SND
WAVE
When the user clicks the Capture button, input
data from a microphone is captured and saved in
an audio file named junk.xx having the specified
file format. (xx is the file extension for the
specified file format. You can easily change the
file name to something other than junk if you
choose to do so.)
Data capture stops and the output file is closed
when the user clicks the Stop button.
It should be possible to play the audio file
using any of a variety of readily available
media players, such as the Windows Media Player.
Not all file types can be created on all systems.
For example, types AIFC and SND produce a "type
not supported" error on my system.
Be sure to release the old file from the media
player before attempting to create a new file
with the same extension.
Tested using SDK 1.4.1 under Win2000
************************************************/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.sound.sampled.*;
public class AudioRecorder02 extends JFrame{
AudioFormat audioFormat;
TargetDataLine targetDataLine;
final JButton captureBtn =
new JButton("Capture");
final JButton stopBtn = new JButton("Stop");
final JPanel btnPanel = new JPanel();
final ButtonGroup btnGroup = new ButtonGroup();
final JRadioButton aifcBtn =
new JRadioButton("AIFC");
final JRadioButton aiffBtn =
new JRadioButton("AIFF");
final JRadioButton auBtn =//selected at startup
new JRadioButton("AU",true);
final JRadioButton sndBtn =
new JRadioButton("SND");
final JRadioButton waveBtn =
new JRadioButton("WAVE");
public static void main( String args[]){
new AudioRecorder02();
}//end main
public AudioRecorder02(){//constructor
captureBtn.setEnabled(true);
stopBtn.setEnabled(false);
//Register anonymous listeners
captureBtn.addActionListener(
new ActionListener(){
public void actionPerformed(
ActionEvent e){
captureBtn.setEnabled(false);
stopBtn.setEnabled(true);
//Capture input data from the
// microphone until the Stop button is
// clicked.
captureAudio();
}//end actionPerformed
}//end ActionListener
);//end addActionListener()
stopBtn.addActionListener(
new ActionListener(){
public void actionPerformed(
ActionEvent e){
captureBtn.setEnabled(true);
stopBtn.setEnabled(false);
//Terminate the capturing of input data
// from the microphone.
targetDataLine.stop();
targetDataLine.close();
}//end actionPerformed
}//end ActionListener
);//end addActionListener()
//Put the buttons in the JFrame
getContentPane().add(captureBtn);
getContentPane().add(stopBtn);
//Include the radio buttons in a group
btnGroup.add(aifcBtn);
btnGroup.add(aiffBtn);
btnGroup.add(auBtn);
btnGroup.add(sndBtn);
btnGroup.add(waveBtn);
//Add the radio buttons to the JPanel
btnPanel.add(aifcBtn);
btnPanel.add(aiffBtn);
btnPanel.add(auBtn);
btnPanel.add(sndBtn);
btnPanel.add(waveBtn);
//Put the JPanel in the JFrame
getContentPane().add(btnPanel);
//Finish the GUI and make visible
getContentPane().setLayout(new FlowLayout());
setTitle("Copyright 2003, R.G.Baldwin");
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(300,120);
setVisible(true);
}//end constructor
//This method captures audio input from a
// microphone and saves it in an audio file.
private void captureAudio(){
try{
//Get things set up for capture
audioFormat = getAudioFormat();
DataLine.Info dataLineInfo =
new DataLine.Info(
TargetDataLine.class,
audioFormat);
targetDataLine = (TargetDataLine)
AudioSystem.getLine(dataLineInfo);
//Create a thread to capture the microphone
// data into an audio file and start the
// thread running. It will run until the
// Stop button is clicked. This method
// will return after starting the thread.
new CaptureThread().start();
}catch (Exception e) {
e.printStackTrace();
System.exit(0);
}//end catch
}//end captureAudio method
//This method creates and returns an
// AudioFormat object for a given set of format
// parameters. If these parameters don't work
// well for you, try some of the other
// allowable parameter values, which are shown
// in comments following the declarations.
private AudioFormat getAudioFormat(){
float sampleRate = 8000.0F;
//8000,11025,16000,22050,44100
int sampleSizeInBits = 16;
//8,16
int channels = 1;
//1,2
boolean signed = true;
//true,false
boolean bigEndian = false;
//true,false
return new AudioFormat(sampleRate,
sampleSizeInBits,
channels,
signed,
bigEndian);
}//end getAudioFormat
//=============================================//
//Inner class to capture data from microphone
// and write it to an output audio file.
class CaptureThread extends Thread{
public void run(){
AudioFileFormat.Type fileType = null;
File audioFile = null;
//Set the file type and the file extension
// based on the selected radio button.
if(aifcBtn.isSelected()){
fileType = AudioFileFormat.Type.AIFC;
audioFile = new File("junk.aifc");
}else if(aiffBtn.isSelected()){
fileType = AudioFileFormat.Type.AIFF;
audioFile = new File("junk.aif");
}else if(auBtn.isSelected()){
fileType = AudioFileFormat.Type.AU;
audioFile = new File("junk.au");
}else if(sndBtn.isSelected()){
fileType = AudioFileFormat.Type.SND;
audioFile = new File("junk.snd");
}else if(waveBtn.isSelected()){
fileType = AudioFileFormat.Type.WAVE;
audioFile = new File("junk.wav");
}//end if
try{
targetDataLine.open(audioFormat);
targetDataLine.start();
AudioSystem.write(
new AudioInputStream(targetDataLine),
fileType,
audioFile);
}catch (Exception e){
e.printStackTrace();
}//end catch
}//end run
}//end inner class CaptureThread
//=============================================//
}//end outer class AudioRecorder02.java
Aqui vai mais um exemplo de Richard.
/**File AudioCapture01.java
This program demonstrates the capture
and subsequent playback of audio data.
A GUI appears on the screen containing
the following buttons:
Capture
Stop
Playback
Input data from a microphone is
captured and saved in a
ByteArrayOutputStream object when the
user clicks the Capture button.
Data capture stops when the user clicks
the Stop button.
Playback begins when the user clicks
the Playback button.
Tested using SDK 1.4.0 under Win2000
**************************************/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.sound.sampled.*;
public class AudioCapture01
extends JFrame{
boolean stopCapture = false;
ByteArrayOutputStream
byteArrayOutputStream;
AudioFormat audioFormat;
TargetDataLine targetDataLine;
AudioInputStream audioInputStream;
SourceDataLine sourceDataLine;
public static void main(
String args[]){
new AudioCapture01();
}//end main
public AudioCapture01(){//constructor
final JButton captureBtn =
new JButton("Capture");
final JButton stopBtn =
new JButton("Stop");
final JButton playBtn =
new JButton("Playback");
captureBtn.setEnabled(true);
stopBtn.setEnabled(false);
playBtn.setEnabled(false);
//Register anonymous listeners
captureBtn.addActionListener(
new ActionListener(){
public void actionPerformed(
ActionEvent e){
captureBtn.setEnabled(false);
stopBtn.setEnabled(true);
playBtn.setEnabled(false);
//Capture input data from the
// microphone until the Stop
// button is clicked.
captureAudio();
}//end actionPerformed
}//end ActionListener
);//end addActionListener()
getContentPane().add(captureBtn);
stopBtn.addActionListener(
new ActionListener(){
public void actionPerformed(
ActionEvent e){
captureBtn.setEnabled(true);
stopBtn.setEnabled(false);
playBtn.setEnabled(true);
//Terminate the capturing of
// input data from the
// microphone.
stopCapture = true;
}//end actionPerformed
}//end ActionListener
);//end addActionListener()
getContentPane().add(stopBtn);
playBtn.addActionListener(
new ActionListener(){
public void actionPerformed(
ActionEvent e){
//Play back all of the data
// that was saved during
// capture.
playAudio();
}//end actionPerformed
}//end ActionListener
);//end addActionListener()
getContentPane().add(playBtn);
getContentPane().setLayout(
new FlowLayout());
setTitle("Capture/Playback Demo");
setDefaultCloseOperation(
EXIT_ON_CLOSE);
setSize(250,70);
setVisible(true);
}//end constructor
//This method captures audio input
// from a microphone and saves it in
// a ByteArrayOutputStream object.
private void captureAudio(){
try{
//Get everything set up for
// capture
audioFormat = getAudioFormat();
DataLine.Info dataLineInfo =
new DataLine.Info(
TargetDataLine.class,
audioFormat);
targetDataLine = (TargetDataLine)
AudioSystem.getLine(
dataLineInfo);
targetDataLine.open(audioFormat);
targetDataLine.start();
//Create a thread to capture the
// microphone data and start it
// running. It will run until
// the Stop button is clicked.
Thread captureThread =
new Thread(
new CaptureThread());
captureThread.start();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}//end catch
}//end captureAudio method
//This method plays back the audio
// data that has been saved in the
// ByteArrayOutputStream
private void playAudio() {
try{
//Get everything set up for
// playback.
//Get the previously-saved data
// into a byte array object.
byte audioData[] =
byteArrayOutputStream.
toByteArray();
//Get an input stream on the
// byte array containing the data
InputStream byteArrayInputStream
= new ByteArrayInputStream(
audioData);
AudioFormat audioFormat =
getAudioFormat();
audioInputStream =
new AudioInputStream(
byteArrayInputStream,
audioFormat,
audioData.length/audioFormat.
getFrameSize());
DataLine.Info dataLineInfo =
new DataLine.Info(
SourceDataLine.class,
audioFormat);
sourceDataLine = (SourceDataLine)
AudioSystem.getLine(
dataLineInfo);
sourceDataLine.open(audioFormat);
sourceDataLine.start();
//Create a thread to play back
// the data and start it
// running. It will run until
// all the data has been played
// back.
Thread playThread =
new Thread(new PlayThread());
playThread.start();
} catch (Exception e) {
System.out.println(e);
System.exit(0);
}//end catch
}//end playAudio
//This method creates and returns an
// AudioFormat object for a given set
// of format parameters. If these
// parameters don't work well for
// you, try some of the other
// allowable parameter values, which
// are shown in comments following
// the declarations.
private AudioFormat getAudioFormat(){
float sampleRate = 8000.0F;
//8000,11025,16000,22050,44100
int sampleSizeInBits = 16;
//8,16
int channels = 1;
//1,2
boolean signed = true;
//true,false
boolean bigEndian = false;
//true,false
return new AudioFormat(
sampleRate,
sampleSizeInBits,
channels,
signed,
bigEndian);
}//end getAudioFormat
//===================================//
//Inner class to capture data from
// microphone
class CaptureThread extends Thread{
//An arbitrary-size temporary holding
// buffer
byte tempBuffer[] = new byte[10000];
public void run(){
byteArrayOutputStream =
new ByteArrayOutputStream();
stopCapture = false;
try{//Loop until stopCapture is set
// by another thread that
// services the Stop button.
while(!stopCapture){
//Read data from the internal
// buffer of the data line.
int cnt = targetDataLine.read(
tempBuffer,
0,
tempBuffer.length);
if(cnt > 0){
//Save data in output stream
// object.
byteArrayOutputStream.write(
tempBuffer, 0, cnt);
}//end if
}//end while
byteArrayOutputStream.close();
}catch (Exception e) {
System.out.println(e);
System.exit(0);
}//end catch
}//end run
}//end inner class CaptureThread
//===================================//
//Inner class to play back the data
// that was saved.
class PlayThread extends Thread{
byte tempBuffer[] = new byte[10000];
public void run(){
try{
int cnt;
//Keep looping until the input
// read method returns -1 for
// empty stream.
while((cnt = audioInputStream.
read(tempBuffer, 0,
tempBuffer.length)) != -1){
if(cnt > 0){
//Write data to the internal
// buffer of the data line
// where it will be delivered
// to the speaker.
sourceDataLine.write(
tempBuffer, 0, cnt);
}//end if
}//end while
//Block and wait for internal
// buffer of the data line to
// empty.
sourceDataLine.drain();
sourceDataLine.close();
}catch (Exception e) {
System.out.println(e);
System.exit(0);
}//end catch
}//end run
}//end inner class PlayThread
//===================================//
}//end outer class AudioCapture01.java
Ainda estou estudando essa API quem souber de mais detalhes por favor contribua com o nosso blog postando e/ou comentando aqui. Um abraço a todos que visitam e estudam por aqui quando eu tiver mais novidades eu deixo aqui fiquem sempre de olho. Link para baixar esse aplicativo http://www.4shared.com/file/7V4sc27vce/Record_And_Playback_Demo.html
Java Sound & Music Software
BSJUG - Baixada Santista Java Users Group 