while getopts "s" OPT; do
test "$OPT" == 's' && screen=true;
done
-arecord | ./goertzel -i -q -a -t $tresh -s 2000 | while read line; do
+arecord | ./goertzel -n -q -l -t $tresh -d 4 | while read line; do
date="$(date +%s)"
time="$(echo "$line" | cut -f 1)"
level="$(echo "$line" | cut -f 2)"