Flash Audio Visualization?
January 13, 2009 7:59 AM   Subscribe

I'm looking for Flash Audio (music) visualization info... and a bit o' help.

I'm a grad student in multimedia and not a Flash expert. I need to talk (or consult) with someone about Audio visualization (kind of like iTunes visualizer.) This is AS3 and beyond what the flash folks at school know.

I'm just not sure where to find someone to have a conversation with. I'm in the greater SF Bay Area and would even toss a few $ in to get my questions answered. Where to look?
posted by cccorlew to Computers & Internet (6 answers total) 1 user marked this as a favorite
 
What are your questions?
posted by grumblebee at 8:15 AM on January 13, 2009


This may help.
posted by grumblebee at 8:22 AM on January 13, 2009


Response by poster: "What are your questions?"

I have LOTS, but my most basic (and the deal breaker for my project) is:
All the examples I've seen use sound files. Is it possible to have it work live using an audio input?
posted by cccorlew at 8:40 AM on January 13, 2009


cccorlew, the normal way you detect audio levels -- e.g. with an playing mp3 file -- is via a method of the SoundChannel object called computeSpectrum(). Unfortunately, this won't work with live mic input.

However, there is a method of the flash.media.Microphone class (the hook into the system mic) called activityLevel(). It will return a number between 0 and 100, based on how much volume the mic is picking up. You could use that to drive a visualizer.

See:http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/media/Microphone.html#activityLevel
posted by grumblebee at 9:05 AM on January 13, 2009


Response by poster: Thanks grumblebee!
But no way to get into the frequency spectrum stuff, eh?
posted by cccorlew at 9:09 AM on January 13, 2009


I don't think so. You could get this answered more definitively at one of the many Flash boards, e.g Flashkit.com
posted by grumblebee at 9:28 AM on January 13, 2009


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