This compile to two tools: waveSendUDP and wavePlayUDP. - waveSendUDP record audio and send it via UDP as interleaved 16 bits raw PCM - wavePlayUDP receive and play the PCM stream Achieved latency using a laptop client (recording) and raspberry pi server: 21ms Example of usage: Client: ./waveSendUDP --chunksize 128 --chunknum 4 --device hw:0,0 --rate 48000 --channel 2 --port 2305 192.168.1.10 Server: ./wavePlayUDP --chunksize 128 --chunknum 10 --device default --rate 48000 --channel 2 --port 2305 chunksize is in samples. There is <rate> samples / seconds (so here 128 samples with 48 samples/ms is 2.667ms per chunk) Options: - chunksize: minimal chunk of audio recorded (on the client) or played (on the server). This value is directly related to the latency. - chunknum: size of the record / play buffer in chunks (can be small on the recorder, but can be larger on the player in case of network jitter). - device: ALSA device to record / play on - rate: sampling rate - channel: number of channels (1 = mono, 2 = stereo) - port: UDP port Additionally, waveSendUDP need the server's IP.