let soundmodem = Soundmodem::new_with_input(source);
let app = M17App::new(soundmodem);
app.add_stream_adapter(Codec2Adapter::new());
let soundmodem = Soundmodem::new_with_input(source);
let app = M17App::new(soundmodem);
app.add_stream_adapter(Codec2Adapter::new());