Android AudioTrack 在声音开始和结束时点击

Question

我在播放声音(来自 SD 卡的 wav)的开始和结束时听到咔嗒声。这一定与轨道缓冲有关，但我不知道解决方案。另外，每次播放声音时我都会创建一个新的，这样可以吗还是有更好的方法？有许多声音一遍又一遍地播放。这是代码:

public void PlayAudioTrack(final String filePath, final Float f) throws IOException
    {

    new Thread(new Runnable() { public void run() { 
            //play sound here
        int minSize = AudioTrack.getMinBufferSize( 44100, AudioFormat.CHANNEL_CONFIGURATION_STEREO, AudioFormat.ENCODING_PCM_16BIT );        
           AudioTrack track = new AudioTrack( AudioManager.STREAM_MUSIC, 44100, 
             AudioFormat.CHANNEL_CONFIGURATION_STEREO, AudioFormat.ENCODING_PCM_16BIT, 
             minSize, AudioTrack.MODE_STREAM);

        track.setPlaybackRate((int) (44100*f));

    if (filePath==null)
    return;

    int count = 512 * 1024; 
    //Read the file..
    byte[] byteData = null;
    File file = null;
    file = new File(filePath);

    byteData = new byte[(int)count];
    FileInputStream in = null;
    try {
    in = new FileInputStream( file );

    } catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    }

    int bytesread = 0, ret = 0;
    int size = (int) file.length();

    while (bytesread < size) { 
    try {
        ret = in.read( byteData,0, count);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } 
    track.play(); 
    if (ret != -1) { 
    // Write the byte array to the track 
    track.write(byteData,0, ret); bytesread += ret; 
    } 
    else break; } 

    try {
        in.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } track.stop(); track.release(); 
    }

        }).start();
        }

非常感谢您的帮助

Answer 1

你不也可以播放PCM波文件头吗？

每个 PCM 波形文件在文件开头都有一个小标题，如果您播放它，您会播放标题字节，这可能会导致在开头出现咔嗒声。