It's quicker to do an FFT with a length that is a power of 2
Can't remember exactly why, but I think the algorithm keeps splitting the array into 2 for each iteration of the calculation...
Have a look on Google. [EMAIL PROTECTED] wrote:
Someone asked me the other day, why the Sound class function computeSpectrum() returns specifically 512 floating point values. I know it returns 256 values for the left and right channels and that each value is a 32-bit floating point value of 4 bytes, but despite alot of Googling, I could find no explanation as to why it's 512 values (rather than 30 or 200,000). Maybe it's a audio specification, maybe it's a number the Adobe Flash team decided arbitrarily was sufficient to represend the sound frequencied. Does any one posses this knowledge? Flashcoder.net _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
_______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
