The audio was pretty straight-forward for the most part. We started off our movie using a fairly
low-quality copy of the original movie soundtrack. For testing purposes we really didn't need
anything high quality.
When we came to producing the final mix, though, we wanted to highlight
certain sounds that were a little less distinct in the real audio. We also needed to make the audio
tracks for the opening and closing titles.
I used the excellent freeware audio tool Audacity,
pretty much just based on the price-point. I also had access to a Blu-ray copy of The Matrix,
and was able to rip a DTS stream out of it that gave me the full soundtrack in 5.1 - all 1.5GB
For the main body of the movie, we used the original soundtrack, obviously. However, some
executive decisions were made about how soft or loud certain parts were. As some of the audio
was on separate tracks in the 5.1 stream, we were able to boost some of the speech and fiddle
with the music levels in places. We feel this helped the sound, at least for our little
production. We're not saying the guys who mixed The Matrix audio did a bad job, it just didn't
suit our tiny section of it.
When it came to the opening and closing titles, however, we couldn't just use existing audio in
its entirety. Our text animations are at different speeds and do slightly different things, so we
had to make our own.