如何混合来自DatagramPackets的多个实时语音音频流？

我正在开发一个项目,我想添加一键通功能,我有android客户端和java服务器.我所做的是送bytes从AudioRecord到我的服务器和广播回连接的客户端.

data从同时发送的不同客户端混合时我的问题是什么.

这是我在服务器上尝试过的:

static boolean status = true;
static int port = 1938;
static byte[] mixed_audio;
static byte[][] all_bytes;
static int client_count = 0;
static DatagramSocket socket;
static ArrayList addresses;
public static void main(String args[]) throws Exception {

    DatagramSocket serverSocket = new DatagramSocket(port);    
    System.out.println("Listening. . .");    
    addresses = new ArrayList<>();

    for(int x = 0; x < args.length; x++){
        if(args[x].equals("-p")){
            port = Integer.parseInt(args[x+1]);
        }
    }

    byte[] receiveData = new byte[1400];

    DatagramPacket receivePacket = new DatagramPacket(receiveData,
            receiveData.length);

    socket = new DatagramSocket();

    while (status == true) {
        all_bytes = new byte[1400][1400];
        mixed_audio = new byte[1400];
        serverSocket.receive(receivePacket);        
        int a = addresses.indexOf(receivePacket.getAddress());
        if(a < 0 ){
            addresses.add(receivePacket.getAddress());            
        }
        client_count++;        
        all_bytes[client_count] = receivePacket.getData();
       new Thread(new ReceiveData(receivePacket.getData(), receivePacket.getAddress())).start();

    }
}

public static class ReceiveData implements Runnable{

    byte[] data;
    InetAddress address;

    public ReceiveData(byte[]  b, InetAddress address){
        this.data = b;
        this.address = address;
    }

    @Override
    public void run() {

        try {
            for(int i = 0; i < 1400; i++){
                for(int j = 0; j < 1400; j++){
                    mixed_audio[j] += all_bytes[i][j];
                }
            } 

            if(client_count > 1){
                int c=0;
                for(int x = 0; x < 1400; x++){
                    mixed_audio[x]  = (byte) (mixed_audio[x] / client_count + 1);
                }
            }else{
                mixed_audio = data;
            }
            client_count--;

            for(InetAddress add: addresses){

                if(add != address){
                    DatagramPacket packet;
                    packet = new DatagramPacket(mixed_audio, mixed_audio.length, add, port);
                    socket.send(packet);

                }

            }


        } catch (IOException ex) {
            //Logger.getLogger(TeraMix.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

}

只有一个客户端正在通话时的音频输出是清晰的,但当多个客户端同时开始通话时的音频输出变得非常不清楚.

我还尝试了我的算法,通过在PC上的文件上使用它来混合音频,它运行良好.我需要的是混合data packets由不同客户同时发送的.

我是否需要在不同的线程上处理客户端？我做错了吗？这有更好的方法吗？请指导我这个.谢谢!