In this tutorial we use a tool called Audacity which is provided free.
Go ahead and open your source file,
audacity can handle a lot of input files. Once open you’ll notice the
track and a waveform of the current file.
First off at the bottom left of your screen change the
sample rate to 44100, this makes the project setting change to the rate we need. See below for an example.
Next go to the arrow at the top left of the current track and select
NOTE: If your sound file is already mono, you can continue to saving. Otherwise follow along below.
To convert from a
stereo to a mono track you need to go to the arrow again at the top left of the current track and press
Split stereo to mono This will create two separate tracks for you.
Now select both tracks using
shift and go to
Track->Mix and render, you will now see one combined track that will be
To save the file simply go to
File->Export Audio, select
Wave and then signed 16 PCM, This will provide a medium quality audio file.
You’ll be presented with another dialog for file tags but be sure to ignore them and just continue, the file will have saved and it’s ready for
Call of Duty: World at War or conversion using the
Black Ops sound tool.