Propeller Head Plaza

RE: "Instruments Without Harmonics?"

160.62.4.10

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Here are a couple of examples:

http://www.cco.caltech.edu/~boyk/spectra/12.htm#a

What you see here is an FFT spectrum of a 148 microsecond risetime rimshot on a snare drum. Note, that while it does contain a LOT of frequencies it is not a continuous spectrum.

http://www.cco.caltech.edu/~boyk/spectra/11.htm#a

This is a 60 microsecond sample of a claves strike from a standing start to 104 dB. This is also a non-periodic signal and yet a FFT spectrum is easily obtainable while there is no fundamental and harmonic structure there is still structure that is related to shape of the rise time.


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