#!/bin/bash
# Script to automatically download Amateur Radio Newsline and convert to ULAW format to play on Asterisk systems
# Written by Kyle Yoksh, K0KN December 2014, last edited 10-18-2015

# Requires SOX and LAME to be installed 

rm -f /tmp/news.mp3
wget --output-document=/tmp/news.mp3 --tries=10 http://www.arnewsline.org/storage/audio/news.mp3 -P /tmp
echo "Converting from MP3 to WAV format"
lame --decode /tmp/news.mp3 /tmp/news.wav
echo "Converting from WAV to ulaw format"
#/usr/local/bin/sox /tmp/news.wav -t au -r 8000 -U -c 1 /tmp/news2.ulaw 
# sox /tmp/news.wav -t au -r 8000 -U -c 1 /tmp/news2.ulaw 
sox /tmp/news.wav -t au -r 8000 -e mu-law -c 1 /tmp/news2.ulaw 

if [ -s /tmp/news2.ulaw ] ; then
rm -f /tmp/news.ulaw
rm -f /tmp/news.mp3
rm -f /tmp/news.wav
mv /tmp/news2.ulaw /tmp/news.ulaw
fi

# Done
exit 0