File36

A file-transfer-over-audio utility, aka a slow modem.

Usage

file36 <command> [options]

Commands

play - Encode some input and play audio

file36 play [-t|-f|-b|-d] <input> [--visualize] [--volume INTEGER] [--speed TEXT] [--save]

Flag	Description
-t, --text	Encode and play a text string
-f, --file	Encode and play a file from the specified file path
-b, --bytes	Encode and play raw bytes (input hex)
-d, --demo	Encode and play demo data ("TEST_DATA 123!@")
--visualize	Show a spectrogram alongside audio playback
-v, --volume	Volume from 1 to 100 (default: 5 to avoid hearing damage)
--speed	Transmission speed (SLOW, FAST, etc.)
--save	Export the played audio as a WAV file

receive - Listen for and decode audio (WIP)

file36 receive [--save]

Flag	Description
--save	Save the received data

Examples

file36 play -t "hello, modem"
file36 play -f ./top-secret.txt --visualize
file36 play -b deadbeef --volume 80 --speed FAST
file36 play -d --save
file36 receive
file36 receive --save