geeky musings; or, I hung out with too many DJ's this weekend

[lauralh]

I wonder if it's possible, through wave analysis (IE the fast-fourier transformation), to figure out the BPM of a song. Because then you could run it, and have your MP3s sorted by folders or playlists named 120BPM, 130BPM, etc. Then if you wanted to mix stuff it would be easy.

Comments

[shelbinator.livejournal.com]

I thought several of the available mixing packages automatically figured that stuff out for ya? 'Cause they tend to tout their ability to mix tracks by setting two points across which you want the two speeds to merge or something....

Or perhaps I'm hallucinating.

Or perhaps they expect you to enter the BPM info manually. Hmmm.
*wishing I had more free time for that*

[herbaliser.livejournal.com]

There's shareware (http://download.cnet.com/downloads/0-1896426-100-1475543.html?tag=st.dl.10001-103-1.lst-7-1.1475543) that figures it out, so I'm sure there's real programs that do what I actually talked about.