#!/bin/bash -x # Run a test using the virtual sound cards function check_alsa_loopback { lsmod | grep snd_aloop >> /dev/null if [ $? -eq 1 ]; then echo "ALSA loopback device not present. Please install with:" echo echo " sudo modprobe snd-aloop index=1,2 enable=1,1 pcm_substreams=1,1 id=CHAT1,CHAT2" exit 1 fi } myInterruptHandler() { exit 1 } check_alsa_loopback RX_LOG=$(mktemp) trap myInterruptHandler SIGINT # make sure all child processes are killed when we exit trap 'jobs -p | xargs -r kill' EXIT python3 util_callback_multimode_rx.py --timeout 60 --framesperburst 2 --bursts 2 --audiodev -2 --debug & rx_pid=$! sleep 1 python3 util_multimode_tx.py --framesperburst 2 --bursts 2 --audiodev -2 --delay 500 wait ${rx_pid}