sound/music initialization failure workaround

echo "DETECT IF ANY SOUND IS PLAYING, configuration for Pulse Audio:"
echo "- run: pavucontrol; and click at recording tab"
echo "- run: arecord -f S16_LE >/dev/null"
echo "- at pavucontrol, at recording, for arecord, select: Monitor of builtin audio.."
echo "- stop arecord and it will keep that setup!"
echo -n "press a key to continue...";read -n 1;echo

# capture thru pulse audio
delay=1 #it doesnt accept less than 1s ...
sedValOfMaxAmp='s".*: *""'
maxAmp=`arecord -d $delay -f S16_LE \
    |sox -t .wav - -n stat 2>&1 \
    |grep "Maximum amplitude" \
    |sed "$sedValOfMaxAmp"`
echo "maxAmp=$maxAmp"

iHasSound=`echo "$maxAmp > 0.0" |bc -l`
bHasSound=false;if((iHasSound==1));then bHasSound=true;fi
if ! $bHasSound; then
    # !!! your code to kill the application/game and restart it !!!
fi