SoundGenerator.java 文件源码

/**
 * Play a sound at a given frequency freq during duration (in seconds) with volume as strenght
 * <br/><br/>
 * <code>SoundGenerator.playSound(440.0,1.0,0.5,SoundGenerator.FADE_LINEAR,SoundGenerator.WAVE_SIN);</code><br/>
 * Available fades : FADE_NONE, FADE_LINEAR, FADE_QUADRATIC<br/>
 * Available waves : WAVE_SIN, WAVE_SQUARE, WAVE_TRIANGLE, WAVE_SAWTOOTH<br/>
 */
public static void playSound(double freq,double duration,double volume,byte fade,byte wave){

    double[] soundData = generateSoundData(freq,duration,volume,fade,wave);
    byte[] freqdata = new byte[soundData.length];

    for(int i = 0;i < soundData.length;i++) {
        freqdata[i] = (byte)soundData[i];
    }

    // Play it
    try {
        final AudioFormat af = new AudioFormat(SAMPLE_RATE, 8, 1, true, true);
        SourceDataLine line = AudioSystem.getSourceDataLine(af);
        line.open(af, SAMPLE_RATE);
        line.start();
        line.write(freqdata, 0, freqdata.length);
        line.drain();
        line.close();
    }catch(LineUnavailableException e) {
        e.printStackTrace();
    }
}