UDP声音传输:播放的声音有很大的噪音

The program might work correctly, but the sound contain(?) uncomfortable noise. when I tried to record & play sound in one program sequence, it worked correctly. There was no noise. In case of using UDP even in one PC, use IP 127.0.0.1, the noise appeared. At first, I thought the factor is because played sound is out in the other PC and I fixed it by making buffer. It solved little noise, but almost all the noise is still remaining.

就是下面的代码

客户

import pyaudio
import socket
from threading import Thread

frames = []

def udpStream():
    udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)    

    while True:
        if len(frames) > 0:
            udp.sendto(frames.pop(0), ("127.0.0.1", 12345))

    udp.close()

def record(stream, CHUNK):    
    while True:
        frames.append(stream.read(CHUNK))

if __name__ == "__main__":
    CHUNK = 1024
    FORMAT = pyaudio.paInt16
    CHANNELS = 2
    RATE = 44100

    p = pyaudio.PyAudio()

    stream = p.open(format = FORMAT,
                    channels = CHANNELS,
                    rate = RATE,
                    input = True,
                    frames_per_buffer = CHUNK,
                    )

    Tr = Thread(target = record, args = (stream, CHUNK,))
    Ts = Thread(target = udpStream)
    Tr.setDaemon(True)
    Ts.setDaemon(True)
    Tr.start()
    Ts.start()
    Tr.join()
    Ts.join()

服务器

import pyaudio
import socket
from threading import Thread

frames = []

def udpStream(CHUNK):

    udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    udp.bind(("127.0.0.1", 12345))

    while True:
        soundData, addr = udp.recvfrom(CHUNK)
        frames.append(soundData)

    udp.close()

def play(stream, CHUNK):
    BUFFER = 10
    while True:
            if len(frames) == BUFFER:
                while True:
                    stream.write(frames.pop(0), CHUNK)

if __name__ == "__main__":
    FORMAT = pyaudio.paInt16
    CHUNK = 1024
    CHANNELS = 2
    RATE = 44100

    p = pyaudio.PyAudio()

    stream = p.open(format=FORMAT,
                    channels = CHANNELS,
                    rate = RATE,
                    output = True,
                    frames_per_buffer = CHUNK,
                    )

    Ts = Thread(target = udpStream, args=(CHUNK,))
    Tp = Thread(target = play, args=(stream, CHUNK,))
    Ts.setDaemon(True)
    Tp.setDaemon(True)
    Ts.start()
    Tp.start()
    Ts.join()
    Tp.join()

抱歉，源代码太长了.随意玩这个程序.

def udpStream(CHUNK):

    udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    udp.bind(("127.0.0.1", 12345))

    while True:
        soundData, addr = udp.recvfrom(CHUNK)
        frames.append(soundData)

    udp.close()

        soundData, addr = udp.recvfrom(CHUNK * CHANNELS * 2)