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Sending Microphone Input to another device over TCP

How it Works

Essentially we are using NETCAT to pipe audio from a mic input on one computer to the audio output of another computer.
It appears that ssh adds a lot of latency around 1-2 secs which is not acceptable more most instances
Netcat on the receiver need to starts before the transmitter starts to send otherwise the transmitter script will exit with a connection refused.

Requirements

Alsa needs to be working on both computers and alsa-utils should be installed to save mixer settings
aplay/arecord also need to be installed along with netcat. In most distributions they are installed as base packages
Obviously some sort of tcp/ip must be running to for the netcat communication to work.

Receiver

#!/bin/sh
 
PORT="8080"
RATE="5"
BUFFER="50"
FORMAT="cd"
 
while [ true ]
do
        netcat -l -p ${PORT} | aplay -B ${BUFFER} -r ${RATE} -f ${FORMAT}
done

Transmitter

wifi_audo_send.sh

#!/bin/sh
 
PORT="8080"
RATE="5"
BUFFER="50"
FORMAT="cd"
 
RECV_ADDR="<IP>"
RECV_PORT="8080"
 
arecord -B ${BUFFER} -r ${RATE} -f ${FORMAT} | netcat ${RECV_ADDR} ${RECV_PORT}

ISD 820 Knowledge Base

Table of Contents

Sending Microphone Input to another device over TCP

How it Works

Requirements

Receiver

Transmitter

ISD 820 Knowledge Base

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Table of Contents

Sending Microphone Input to another device over TCP

How it Works

Requirements

Receiver

Transmitter

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