You need a sound system with a lot of power and a great sub (turned up to house shaking level) to get the right effect of this video. I made this for all the people who dreamed of seeing a launch in person but were never able to make the trip themselves.
Using dozens of different video sources and countless audio versions of Shuttle launches I mixed this little clip together to mimic as close an experience to the real thing as I could. I know that the exact sequence of countdown events is somewhat compressed and not time-accurate but I was going more for the 'feel' of a high energy launch experience rather than a technical documentary. Throttle Up and SRB Separation are sounds as might be heard from onboard acoustic transducers picking up resonant vibration in the vehicle's structure.
Please take care not to damage your sound equipment during playback. I did not do anything to boost the low frequency roar of the Shuttle during liftoff but the SRB and SSME thrust noise may be taxing to even high quality sub-woofers and speaker cones if played too loud.
For those who sit through the last few frames you can catch a glimpse of my home theater system I built a couple of years ago. This video really is best viewed at 165 inches or better!