audio client.py

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()