On 26-Mar-07, at 10:21 AM, David Fleming wrote: >> That's a fairly old feature of QuickTime. What's not old though is >> that QuickTime has a newish way to do this task - and that's what the >> project shows. > > I'm working on an audio spectrum analyzer and it sure would be > nice to have QT do the FFT math. There may be a way to use QT with > live data (from the mic or audio input) by setting up a "movie" > audio track in memory, but I can't seem to figure out how to do > it. I've been struggling to code the FFTs in RB and haven't had > much success. It's pretty complex stuff. I did find a FFT plugin > for RB this weekend. Hopefully that will work.
Although I haven't had a need for this sort of thing personally, I have helped other users hook into the FFT/spectrum APIs available in the FMOD Ex library - it's relatively painless. FMOD's licensing isn't suitable for everyone but you should give it a serious look if you're into audio: <http://fmod.org>. It has tone generators as well, but that's another area I haven't yet explored. I have open source RB classes based on FMOD Ex here: <http:// developer.chaoticbox.com/realbasic_declares.php> (with an update coming soon) but I'm not affiliated with the FMOD developers and don't get any sort of kickback - I'm just a happy user. Frank. <http://developer.chaoticbox.com/> _______________________________________________ Unsubscribe or switch delivery mode: <http://www.realsoftware.com/support/listmanager/> Search the archives: <http://support.realsoftware.com/listarchives/lists.html>
