Examples with AudioInputStream javax.sound.sampled.AudioInputStream used on opensource projects

Example 76 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project algorithms-learning by brianway.

the class StdAudio method readByte.

// return data as a byte array
private static byte[] readByte(String filename) {
    byte[] data = null;
    AudioInputStream ais = null;
    try {
        // try to read from file
        File file = new File(filename);
        if (file.exists()) {
            ais = AudioSystem.getAudioInputStream(file);
            data = new byte[ais.available()];
            ais.read(data);
        } else // try to read from URL
        {
            URL url = StdAudio.class.getResource(filename);
            ais = AudioSystem.getAudioInputStream(url);
            data = new byte[ais.available()];
            ais.read(data);
        }
    } catch (IOException e) {
        System.out.println(e.getMessage());
        throw new RuntimeException("Could not read " + filename);
    } catch (UnsupportedAudioFileException e) {
        System.out.println(e.getMessage());
        throw new RuntimeException(filename + " in unsupported audio format");
    }
    return data;
}

Example 77 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project algorithms-learning by brianway.

the class StdAudio method save.

/**
 * Saves the double array as an audio file (using .wav or .au format).
 *
 * @param filename the name of the audio file
 * @param samples the array of samples
 */
public static void save(String filename, double[] samples) {
    // assumes 44,100 samples per second
    // use 16-bit audio, mono, signed PCM, little Endian
    AudioFormat format = new AudioFormat(SAMPLE_RATE, 16, 1, true, false);
    byte[] data = new byte[2 * samples.length];
    for (int i = 0; i < samples.length; i++) {
        int temp = (short) (samples[i] * MAX_16_BIT);
        data[2 * i + 0] = (byte) temp;
        data[2 * i + 1] = (byte) (temp >> 8);
    }
    // now save the file
    try {
        ByteArrayInputStream bais = new ByteArrayInputStream(data);
        AudioInputStream ais = new AudioInputStream(bais, format, samples.length);
        if (filename.endsWith(".wav") || filename.endsWith(".WAV")) {
            AudioSystem.write(ais, AudioFileFormat.Type.WAVE, new File(filename));
        } else if (filename.endsWith(".au") || filename.endsWith(".AU")) {
            AudioSystem.write(ais, AudioFileFormat.Type.AU, new File(filename));
        } else {
            throw new RuntimeException("File format not supported: " + filename);
        }
    } catch (IOException e) {
        System.out.println(e);
        System.exit(1);
    }
}

Example 78 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project competitive-programming by ttvi-cse.

the class StdAudio method stream.

// https://www3.ntu.edu.sg/home/ehchua/programming/java/J8c_PlayingSound.html
// play a wav or aif file
// javax.sound.sampled.Clip fails for long clips (on some systems)
private static void stream(String filename) {
    SourceDataLine line = null;
    // 4K buffer
    int BUFFER_SIZE = 4096;
    try {
        InputStream is = StdAudio.class.getResourceAsStream(filename);
        AudioInputStream ais = AudioSystem.getAudioInputStream(is);
        AudioFormat audioFormat = ais.getFormat();
        DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
        line = (SourceDataLine) AudioSystem.getLine(info);
        line.open(audioFormat);
        line.start();
        byte[] samples = new byte[BUFFER_SIZE];
        int count = 0;
        while ((count = ais.read(samples, 0, BUFFER_SIZE)) != -1) {
            line.write(samples, 0, count);
        }
    } catch (IOException e) {
        e.printStackTrace();
    } catch (UnsupportedAudioFileException e) {
        e.printStackTrace();
    } catch (LineUnavailableException e) {
        e.printStackTrace();
    } finally {
        if (line != null) {
            line.drain();
            line.close();
        }
    }
}

Example 79 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project competitive-programming by ttvi-cse.

the class StdAudio method readByte.

// return data as a byte array
private static byte[] readByte(String filename) {
    byte[] data = null;
    AudioInputStream ais = null;
    try {
        // try to read from file
        File file = new File(filename);
        if (file.exists()) {
            ais = AudioSystem.getAudioInputStream(file);
            int bytesToRead = ais.available();
            data = new byte[bytesToRead];
            int bytesRead = ais.read(data);
            if (bytesToRead != bytesRead)
                throw new IllegalStateException("read only " + bytesRead + " of " + bytesToRead + " bytes");
        } else // try to read from URL
        {
            URL url = StdAudio.class.getResource(filename);
            ais = AudioSystem.getAudioInputStream(url);
            int bytesToRead = ais.available();
            data = new byte[bytesToRead];
            int bytesRead = ais.read(data);
            if (bytesToRead != bytesRead)
                throw new IllegalStateException("read only " + bytesRead + " of " + bytesToRead + " bytes");
        }
    } catch (IOException e) {
        throw new IllegalArgumentException("could not read '" + filename + "'", e);
    } catch (UnsupportedAudioFileException e) {
        throw new IllegalArgumentException("unsupported audio format: '" + filename + "'", e);
    }
    return data;
}

Example 80 with AudioInputStream

use of javax.sound.sampled.AudioInputStream in project competitive-programming by ttvi-cse.

the class StdAudio method loop.

/**
 * Loops an audio file (in .wav, .mid, or .au format) in a background thread.
 *
 * @param filename the name of the audio file
 * @throws IllegalArgumentException if {@code filename} is {@code null}
 */
public static synchronized void loop(String filename) {
    if (filename == null)
        throw new IllegalArgumentException();
    // code adapted from: http://stackoverflow.com/questions/26305/how-can-i-play-sound-in-java
    try {
        Clip clip = AudioSystem.getClip();
        InputStream is = StdAudio.class.getResourceAsStream(filename);
        AudioInputStream ais = AudioSystem.getAudioInputStream(is);
        clip.open(ais);
        clip.loop(Clip.LOOP_CONTINUOUSLY);
    } catch (UnsupportedAudioFileException e) {
        throw new IllegalArgumentException("unsupported audio format: '" + filename + "'", e);
    } catch (LineUnavailableException e) {
        throw new IllegalArgumentException("could not play '" + filename + "'", e);
    } catch (IOException e) {
        throw new IllegalArgumentException("could not play '" + filename + "'", e);
    }
}