Java-通过Java套接字广播语音

Question

我创建了一个服务器应用程序，该应用程序从客户端接收声音，然后广播此声音，该声音以字节存储，然后将字节发送回连接到服务器的客户端。现在，我目前仅使用一个客户端进行测试，客户端正在接收语音，但是声音一直在卡顿。有人可以告诉我我做错了吗？

我想我理解为什么声音播放不流畅但不了解如何解决问题的部分原因。

代码是波纹管的。

客户端：

将声音发送到服务器的部分

     public void captureAudio()
     {


      Runnable runnable = new Runnable(){

     public void run()
     {
          first=true;
          try {
           final AudioFileFormat.Type fileType = AudioFileFormat.Type.AU;                      
           final AudioFormat format = getFormat();
           DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
           line = (TargetDataLine)AudioSystem.getLine(info);               
           line.open(format);
           line.start();
                int bufferSize = (int) format.getSampleRate()* format.getFrameSize();
                byte buffer[] = new byte[bufferSize];

                    out = new ByteArrayOutputStream();
                    objectOutputStream = new BufferedOutputStream(socket.getOutputStream());
                    running = true;
                    try {                      
                        while (running) {                         
                            int count = line.read(buffer, 0, buffer.length);
                            if (count > 0) {
                                objectOutputStream.write(buffer, 0, count);
                                out.write(buffer, 0, count);
                                InputStream input = new ByteArrayInputStream(buffer);
                                final AudioInputStream ais = new AudioInputStream(input, format, buffer.length /format.getFrameSize());

                            }                           
                        }
                        out.close();
                        objectOutputStream.close();
                    }
                    catch (IOException e) {                    
                        System.exit(-1);
                        System.out.println("exit");
                    }
          }
          catch(LineUnavailableException e) {
            System.err.println("Line Unavailable:"+ e);
            e.printStackTrace();
            System.exit(-2);
          }
          catch (Exception e) {
           System.out.println("Direct Upload Error");
           e.printStackTrace();
          }
     }

     };

     Thread t = new Thread(runnable);
     t.start();

     }

从服务器接收数据字节的部分

    private void playAudio() {
     //try{


    Runnable runner = new Runnable() {

    public void run() {
        try {
            InputStream in = socket.getInputStream();
            Thread playTread = new Thread();

            int count;
            byte[] buffer = new byte[100000];
            while((count = in.read(buffer, 0, buffer.length)) != -1) {

                PlaySentSound(buffer,playTread);
            }
        }
        catch(IOException e) {
                System.err.println("I/O problems:" + e);
                System.exit(-3);
        }
      }
    };

    Thread playThread  = new Thread(runner);
    playThread.start();
  //}
  //catch(LineUnavailableException e) {
   //System.exit(-4);
  //}
    }//End of PlayAudio method

    private void PlaySentSound(final byte buffer[], Thread playThread)
    {

    synchronized(playThread)
    {

    Runnable runnable = new Runnable(){

    public void run(){
        try
        {

                InputStream input = new ByteArrayInputStream(buffer);
                final AudioFormat format = getFormat();
                final AudioInputStream ais = new AudioInputStream(input, format, buffer.length /format.getFrameSize());
                DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
                sline = (SourceDataLine)AudioSystem.getLine(info);
                sline.open(format);
                sline.start();              
                Float audioLen = (buffer.length / format.getFrameSize()) * format.getFrameRate();

                int bufferSize = (int) format.getSampleRate() * format.getFrameSize();
                byte buffer2[] = new byte[bufferSize];
                int count2;


                ais.read( buffer2, 0, buffer2.length);
                sline.write(buffer2, 0, buffer2.length);
                sline.flush();
                sline.drain();
                sline.stop();
                sline.close();  
                buffer2 = null;


        }
        catch(IOException e)
        {

        }
        catch(LineUnavailableException e)
        {

        }
    }
    }; 
   playThread = new Thread(runnable);
   playThread.start();
   }


   }

Answer 1

您将声音数据包非常随机地分割为1000000字节，然后在客户端上播放它们，而不考虑在服务器端计算出的采样率和帧大小，因此最终将声音分成两部分一起。

您需要对服务器发送的相同块进行解码，就像在客户端发送它们一样。也许使用http
multipart（在其中拆分数据非常容易）发送它们，然后通过套接字进行基本操作比较容易。最简单的方法是使用apache commons
http客户端，在此处查看：http
:
//hc.apache.org/httpclient-3.x/methods/multipartpost.html