Matching music to visuals is fun and pretty easy to do in Sony Vegas, my fave video editor. After trial and error with various means, I figured out a practical way to do this with MixMeister BPM Analyzer. It works best when the music has a strong, steady tempo — most modern pop, rock, and dance will do. Works lovely for your music videos, action-packed cinematics, and more.
I'm expanding into video tutorials outside of Second Life (altho they may very well be applicable), and in this screencast, I'll show you exactly how to beat-sync your songs to video!
(If you're subscribed to Torley Lives via RSS — thanx! — and viewing this in a feed reader, the video may not appear correctly. Please click through and watch it on my blog.)
» DOWNLOAD HIFI VIDEO - Want more quality? Here you are.
» DOWNLOAD EXAMPLE PROJECT FILE - For reverse-engineering .
It was made in Vegas Pro 8.
Also: I wish Vegas had built-in beat detection like ACID, or even better, Ableton Live or some VJ apps (for which it's a performance necessity). For now though, the method I present can be pulled off in a few minutes tops, and is very usable.
Let me know if you find this usefun (useful + fun)!

September 30th, 2008 at 4:51 AM PDT
WOW great advice… And I spent hours syncing my dances in my Second Life Swing Video
(http://www.youtube.com/watch?v=rTuOOUIi69k)
….grrrr This would have been much simpler…Thanks
October 4th, 2008 at 8:12 AM PDT
@Lowe: Look forward to more videos from you with beat-sync! I used to do it by hand until I found this simpler method — it's how we learn, going forward!
October 22nd, 2008 at 2:30 PM PDT
[...] for the virtual world of Second Life, and I've also done tutorials for stuff like YouTube and Sony Vegas. If a picture's a 1,000 words, then a video is… a LOT [...]
December 14th, 2008 at 8:25 PM PST
Nidesoft is outstanding and professional software producer for multimedia conversion between all popular video and audio files, between DVD and all popular portable players.
Now it has launched a series of new software for enjoying videos and music with Sony products.
December 15th, 2008 at 7:23 PM PST
Suan, I agree with you. Nidesoft is wonderful and now I found that it has pubished two excellent software for all the Sony devices. Nidesoft DVD to Sony Xperia Converter and Nidesoft Sony XPeria Video Converter. with those two software, you can get vides and music from DVD and all other video files for all your Sony devices such as PSP, Sony Erission mobile phone, walkman,PS3.etc..
December 19th, 2008 at 6:15 PM PST
I'll have a look at Nidesoft… I was SORELY disappointed by Badaboom's clunkiness. GPU-accelerated video encoding is promising but still primitive in its execution.