cydark

#Copyright (c) 2013 Iwan 'qubodup' Gabovitch
#
#This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
#Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
#1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
#2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
#3. This notice may not be removed or altered from any source distribution.

#!/bin/bash

command -v sox >/dev/null 2>&1 || { echo >&2 "This command requires sox but it's not installed. Aborting."; exit 1; }
if (( $# != 1 ))
then
  echo "Usage: cydark file"
  exit 1
fi

sox "$1" /tmp/cd125.wav pitch -125
sox "$1" /tmp/cd250.wav pitch -250
sox "$1" /tmp/cd500.wav pitch -500

sox -m "/tmp/cd125.wav" "/tmp/cd250.wav" "/tmp/cd500.wav" "cydark-$1" norm