XPost: rec.music.gdead, sci.electronics.design   
   From: dpierce@cartchunk.org   
      
   upsidedown@downunder.com wrote:   
   > I have always had the impression that you needed something similar of   
   > a continuous waveform to get the FFT, trying to take the FFT of a   
   > single pulse does not make a lot sense.   
      
   It makes perfect sense. A single unit pulse gives essentially   
   a continuous spectrum up to the first null occuring at, essential   
   1/pule width.   
      
   > While the decaying part of the piano waveform could be simulated with   
   > a series of sine waves multiplied with a curve simulating the   
   > inversely exponentially dying out string oscillations, the attack part   
   > of the waveform is far more complicated.   
      
   No, just a wider bandwidth in its spectrum   
      
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