#!/bin/bash

# Accepts a single argument, which is a path to the directory containing all the
# WAV files generated by a recordings from the X-Live card.
# Looks for files like 000000.WAV 000001.WAV 000002.WAV etc.
#
# Outputs files like Ch01.WAV Ch02.WAV Ch03.WAV etc.
#
# Requires sox


cd "$1"

shopt -s nullglob # Empty array when no matching files
wavFiles=(*.WAV)

echo ${#wavFiles[@]}

if [ ${#wavFiles[@]} -eq 0 ]; then
  echo "No WAV files found in `pwd`"
  exit
fi

echo "Found these wav files: ${wavFiles[@]}"

for run in {01..32}; do
  echo "Splitting out channel ${run}"
  channel=$(printf "%02d" $run)

  `sox ${wavFiles[@]} Ch${channel}.wav remix ${run}`
done

echo "Done."