Headphone burnin script

burnin.bash

#!/bin/bash
# Headphone burnin program use SoX tools

function wlog {
echo "[`date +%F\ %T`]" $@
}

AUDIODEV=${AUDIODEV:-"default"}

wlog "Select device [$AUDIODEV]"

CYCLE_COUNT=${1:-`cat burnin.cycle 2>/dev/null`}
CYCLE_COUNT=${CYCLE_COUNT:-0}

function cleanup {
wlog "$CYCLE_COUNT cycle completed before exit."
echo $CYCLE_COUNT > burnin.cycle
exit
}

trap "cleanup" SIGINT SIGTERM

while true;
do
  wlog "New 120min burn-in cycle started ($CYCLE_COUNT cycle completed)."
  play -r 96000 -n synth 18:00 pinknoise pad 0 2:00 repeat 5 2>/dev/null 1>&2
  ((CYCLE_COUNT++))
  echo $CYCLE_COUNT > burnin.cycle
  wlog "Cycle $CYCLE_COUNT completed. Next cycle will start after 1h."
  sleep 1h
done