echolot

a cli tool for exchanging files over speakers and microphones

Installation

cargo install echolot

Usage

1. Transmitting party runs

echolot transmit <file>

The transmitter will then listen for initiation from receiving party.

2. On receiving party run:

echolot receive

This will send the initiation to the transmitting party and start the whole transmission process.

Technicals

Modulation is done with a simple 256-MFSK. Each frequency therefore represents one byte.