如何在Java中以给定的采样率播放声音？

这是一个完整的示例，不需要任何外部库：

import javax.sound.sampled.*;public class SoundUtils {  public static float SAMPLE_RATE = 8000f;  public static void tone(int hz, int msecs)      throws LineUnavailableException   {     tone(hz, msecs, 1.0);  }  public static void tone(int hz, int msecs, double vol)      throws LineUnavailableException   {    byte[] buf = new byte[1];    AudioFormat af =         new AudioFormat( SAMPLE_RATE, // sampleRate 8,// sampleSizeInBits 1,// channels true,        // signed false);      // bigEndian    SourceDataLine sdl = AudioSystem.getSourceDataLine(af);    sdl.open(af);    sdl.start();    for (int i=0; i < msecs*8; i++) {      double angle = i / (SAMPLE_RATE / hz) * 2.0 * Math.PI;      buf[0] = (byte)(Math.sin(angle) * 127.0 * vol);      sdl.write(buf,0,1);    }    sdl.drain();    sdl.stop();    sdl.close();  }  public static void main(String[] args) throws Exception {    SoundUtils.tone(1000,100);    Thread.sleep(1000);    SoundUtils.tone(100,1000);    Thread.sleep(1000);    SoundUtils.tone(5000,100);    Thread.sleep(1000);    SoundUtils.tone(400,500);    Thread.sleep(1000);    SoundUtils.tone(400,500, 0.2);  }}

来源：http :
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