A straght forward point to point audio over UDP streaming server and client, transmitting 16 bit 44100 Hz PCM over W/LAN.
pyaudio
numpy
tkinter
pyinstaller (if packaging into executable)
Change to suit needs:
self.sample_rate = 44100
self.chunk_size = 1024
self.interface = 'BlackHole 16ch'
Launch script:
python AudioStreamServer.py
Interface is self explanitory for adding and modifying clients.
The list of clients can be saved and loaded from a json file.
Change to match server parameters
client_port = 57001
rate = 44100
chunk_size = 1024
Launch script: python AudioStreamClient.py
pyinstaller audio_stream_server.spec
portaudio pyaudio
Tested with server running from M2 mac laptop and client on RPi4 over WLAN Minimal frame drops was a happy expereince.
CHUNK = 2048 RATE = 44100 BUFF_SIZE = 65536 FORMAT = pyaudio.paInt16
AUDIO_INTERFACE = 'MacBook Air Microphone'#'BlackHole 16ch'
PORT = 50007 # send to this port
CLIENTS = ['127.0.0.1', '192.168.1.3', '10.0.0.1', '10.0.0.4', '10.0.0.3', '10.0.0.2'] # a list of clients to send packets
CHANNEL_MAP = [{'ch':0,'ip':CLIENTS[0]}, {'ch':0,'ip':CLIENTS[1]}, ]
HOST = '' # Symbolic name for all available (no need to change)
PORT = 50007 # listen on the port
CHUNK = 1024
JITTER_LAG = 0.25
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
BUFF_SIZE = 65536
python server.py
python client
This repository created by https://digitalmedia.ok.ubc.ca/spiral/
Client built upon the very useful post https://pyshine.com/How-to-send-audio-from-PyAudio-over-socket/
Server apadpted from: https://github.com/amurzeau/waveOverUDP and https://gist.github.com/ViennaMike/70c6a47ad5309a06f03faed047b1df11
multichannel capability adapted from https://github.com/Tomlevron/multi-channel-audio-recorder/blob/main/audio_recorder.py