Speak IP Address with My Voice

#record digits vocals
for i in {0..9}
do
  echo $i
  rec ${i}.wav silence 1 0.1 3% 1 0.5 3%
  sleep .2
done

#record dot vocals
rec dot.wav silence 1 0.1 3% 1 0.5 3%

# play ip address audio
ip="$(hostname -I|awk '{print $1}')"
for ((i=0; i<${#ip}; i++)); do
  char="${ip:i:1}"
  [[ "$char" == "." ]] && char="dot"
  mpv ${char}.wav
done

# wav output for streaming to Thingino
echo "Content-type: audio/x-wav"
echo ""
# get q variable
eval $(echo "$QUERY_STRING" | awk -F'&' '{for(i=1;i<=NF;i++){print $i}}')

#get IP address and strip all non number and 'dot' chars
ip=$(busybox httpd -d $q | sed 's/[^0-9.]//g')

input_wavs=""
for ((i = 0; i < ${#ip}; i++)); do
  char="${ip:i:1}"
  [[ "$char" == "." ]] && char="dot"
  input_wavs+="${char}.wav "
done
sox $input_wavs -t wav - channels 1 rate 16000