Example usage for javax.sound.sampled TargetDataLine open

Introduction

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

Prototype

void open(AudioFormat format) throws LineUnavailableException;

Source Link

Document

Opens the line with the specified format, causing the line to acquire any required system resources and become operational.

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);
    line.start();//from w  w  w  . ja v a  2 s . com
    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();

}

---

From source file:org.snitko.app.record.SoundRecorder.java

public AudioInputStream record(long durationInSeconds) throws LineUnavailableException {
    Mixer.Info[] mixers = AudioSystem.getMixerInfo();
    for (Mixer.Info mixer : mixers) {
        System.out.printf("mixer name/desc/vendor/version: %s, %s, %s, %s\n", mixer.getName(),
                mixer.getDescription(), mixer.getVendor(), mixer.getVersion());
    }/*from   w ww .j a v  a2s.c  o m*/

    AudioFileFormat.Type[] types = AudioSystem.getAudioFileTypes();
    for (AudioFileFormat.Type type : types) {
        System.out.println("audio types are: " + type.toString());
    }

    AudioFormat audioFormat = getAudioFormat();

    // the targetDataLine from which audio data is captured
    TargetDataLine targetDataLine = AudioSystem.getTargetDataLine(audioFormat);
    System.out.println("targetDataLine: " + targetDataLine + "\n\tlineInfo" + targetDataLine.getLineInfo()
            + "\n\tformat: " + targetDataLine.getFormat());

    // checks if system supports the data targetDataLine
    if (!AudioSystem.isLineSupported(targetDataLine.getLineInfo())) {
        System.out.println("Line not supported");
        System.exit(0);
    }

    targetDataLine.addLineListener(new TimedLineListener(targetDataLine, durationInSeconds));
    targetDataLine.open(audioFormat);
    targetDataLine.start(); // start capturing

    System.out.println("Start capturing...");
    AudioInputStream audioInputStream = new AudioInputStream(targetDataLine);
    System.out.println("Start recording...");
    return audioInputStream;
}

---