npm

minimodem

General-purpose software audio FSK modem for data transmission

brewmacoslinux
Try with needOr install directly
Source

About

General-purpose software audio FSK modem

Commands

minimodem

Examples

Receive data from audio input and print to stdout$ minimodem --rx 1200
Transmit text data as audio FSK modulation at 300 baud$ echo 'Hello World' | minimodem --tx 300
Receive data from a file and save decoded output$ minimodem --rx 1200 < audio.wav > output.txt