#!/usr/bin/env zsh
# requires: ffmpeg
# written by Steve Kinney (2018), licensed under CC BY-SA 4.0
# audio -> 16/48K

IMG_FILES="^*.png ^*.PNG ^*.jpg ^*.JPG ^*.bmp ^*.BMP ^*.gif ^*.GIF ^*.tiff ^*.TIFF"

for f in *.flac;
do
echo "Processing $f"
ffmpeg -y -i "$f" -sample_fmt s16 -ar 48000 "${f%.flac}-16.flac"
done

while true; do
	read -p "Delete original files? " yn
	case $yn in
		[Yy]* ) rm -- ^*-16.flac $IMG_FILES; exit;;
		[Nn]* ) exit;;
		* ) printf "Please answer yes or no. ";;
	esac
done