#!/bin/bash

if ! [ -f "${1}" ]
then
	echo "File ${1} not found"
	exit 1
fi

NAME=$( basename "${1}" .hsr.wav )
if ! [ -f "${NAME}.hsr.wav" ]
then
	echo "File ${NAME}.hsr.wav not found"
	exit 1
fi

echo "Reducing sample rate of ${1}"
# Convert to wav
if [ -n "${2}" ]
then
	# Volume
	echo "Adjusting volume by ${2}"
	sox -v "${2}" "${1}" -t wav -r 8000 -e signed-integer -b 16 -c 1 "${NAME}.wav" highpass 300 lowpass 3400
else
	sox "${1}" -t wav -r 8000 -e signed-integer -b 16 -c 1 "${NAME}.wav" highpass 300 lowpass 3400
fi

# Convert to sln
sox "${NAME}.wav" -t raw -r 8000 -e signed-integer -b 16 -c 1 "${NAME}.sln"