40 lines
984 B
Python
40 lines
984 B
Python
import alsaaudio
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import socket
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import opuslib
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# Network
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UDP_PORT = 5005
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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sock.bind(("0.0.0.0", UDP_PORT))
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decoder = opuslib.Decoder(48000, 1)
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# Audio
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RATE = 48000
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CHANNELS = 1
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CHUNKSIZE = 960
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out = alsaaudio.PCM(
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alsaaudio.PCM_PLAYBACK,
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alsaaudio.PCM_NORMAL,
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channels=CHANNELS,
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rate=RATE,
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format=alsaaudio.PCM_FORMAT_S16_LE,
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periodsize=CHUNKSIZE, # must match sender
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device='default'
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)
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print("Receiving...")
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SILENCE = b'\x00' * (CHUNKSIZE * 2) # 1920 bytes of silence
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sock.settimeout(0.05) # 50ms timeout
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try:
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while True:
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try:
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data, addr = sock.recvfrom(4096)
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pcm_data = decoder.decode(data, 960)
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out.write(pcm_data) # play the 960 samples
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except socket.timeout:
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out.write(SILENCE) # packet lost → play silence
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except KeyboardInterrupt:
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sock.close()
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print("Stopped") |