Example usage for javax.sound.sampled TargetDataLine read

Introduction

In this page you can find the example usage for javax.sound.sampled TargetDataLine read.

Prototype

int read(byte[] b, int off, int len);

Source Link

Document

Reads audio data from the data line's input buffer.

Usage

From source file:Main.java

public static void main(String args[]) throws Exception {
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    float sampleRate = 8000;
    int sampleSizeInBits = 8;
    int channels = 1;
    boolean signed = true;
    boolean bigEndian = true;
    final AudioFormat format = new AudioFormat(sampleRate, sampleSizeInBits, channels, signed, bigEndian);
    DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
    final TargetDataLine line = (TargetDataLine) AudioSystem.getLine(info);
    line.open(format);/*from   w w  w . j  av  a2  s  .  c o  m*/
    line.start();
    Runnable runner = new Runnable() {
        int bufferSize = (int) format.getSampleRate() * format.getFrameSize();

        byte buffer[] = new byte[bufferSize];

        public void run() {
            try {

                int count = line.read(buffer, 0, buffer.length);
                if (count > 0) {
                    out.write(buffer, 0, count);
                }

                out.close();
            } catch (IOException e) {
                System.err.println("I/O problems: " + e);
                System.exit(-1);
            }
        }
    };
    Thread captureThread = new Thread(runner);
    captureThread.start();

    byte audio[] = out.toByteArray();
    InputStream input = new ByteArrayInputStream(audio);
    final SourceDataLine line1 = (SourceDataLine) AudioSystem.getLine(info);
    final AudioInputStream ais = new AudioInputStream(input, format, audio.length / format.getFrameSize());
    line1.open(format);
    line1.start();

    runner = new Runnable() {
        int bufferSize = (int) format.getSampleRate() * format.getFrameSize();

        byte buffer[] = new byte[bufferSize];

        public void run() {
            try {
                int count;
                while ((count = ais.read(buffer, 0, buffer.length)) != -1) {
                    if (count > 0) {
                        line1.write(buffer, 0, count);
                    }
                }
                line1.drain();
                line1.close();
            } catch (IOException e) {
                System.err.println("I/O problems: " + e);
                System.exit(-3);
            }
        }
    };
    Thread playThread = new Thread(runner);
    playThread.start();

}

---