java byte array play sound

Question

I have a small program that reads from dataline mic to byte array I am not 100% sure it works but just by printing part of the array it seem to chang when am making a sound next to the mic:)

I like to play the sound back how do i play the data from the buffer(byte array to sound)??

 package mic; 
import javax.sound.sampled.*;

public class Mic extends Thread{
    boolean flag;
    TargetDataLine mic;
    byte[] buffer;
    AudioFormat format;

    public static void main(String[] args) {
       Mic a=new Mic();
       a.start();
    }
    @Override
    public void run()
    {
        flag=true;
        startMic();
        while(flag)
        {
            send();
        }
    }
    public void send()
    {
        try{
            mic.read(buffer,0,512);
            System.out.println("1. "+buffer[0]);
        }catch(Exception ex)
        {

        }
    }
    public void startMic()
    {
        try{
            format=new AudioFormat(AudioFormat.Encoding.PCM_SIGNED,8000.0F,16,2,4,8000.0F,true);
            DataLine.Info info=new DataLine.Info(TargetDataLine.class,format);
            mic=(TargetDataLine)AudioSystem.getLine(info);
            mic.open();
            mic.start();
            buffer=new byte[512];
        }catch(Exception exx)
        {
            System.out.println("exx");
        }

    }
}

EDIT:
what i wanted to do in the end is send the byte array to other app and play right away
like live stream of a radio

Create/select a SourceDataLine with the same AudioFormat and write your bytes in there. Or wrap your data in an AudioInputStream and use a WaveFileWriter to store it as a .WAV file to disk. — mihi
– mihi, Commented Sep 25, 2012 at 19:13

kirbyfan64sos · Accepted Answer · 2014-10-15 23:17:31Z

9

Based on this:

// Create the AudioData object from the byte array
AudioData audiodata = new AudioData(byteArray);
// Create an AudioDataStream to play back
AudioDataStream audioStream = new AudioDataStream(audioData);
// Play the sound
AudioPlayer.player.start(audioStream);

answered Oct 15, 2014 at 23:17

kirbyfan64sos

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3 Comments

Sachin Setiya Over a year ago

What i need to import for using AudioPlayer

CFSO6459 Over a year ago

@Sachin-Setiya: import java.io.InputStream

CFSO6459 Over a year ago

AudioData and AudioDataStream require sun.* packages, which is WAY OUT OF DATE (~20 years ago) and they have lots of bugs. Please try to avoid using it [Reference]. (And this might be a better way.)

Julien Vermillard · Accepted Answer · 2012-09-25 20:56:18Z

2

A easy way to test the captured data is to save them into a file and load then in audacity using the RAW file import. Just specify your raw file format as : Sampling rate 8KHz format PCM big endian stereo 16 bits

answered Sep 25, 2012 at 20:56

Julien Vermillard

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2 Comments

user1246950 Over a year ago

theres got to be a way to play it right from the byte array or convert it to some thing els(stay in mem) then play it ,id like to avoid the hd

Julien Vermillard Over a year ago

yes but you will need to debug both your record and your playback code, this way is much easier to test

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