Is there a nice (pure Java) open source libary to get the frequence spectrum of samples taken from a AudioInputStream?
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59answers:
2
A:
The website for FFTW, one of the most popular FFT libraries, supposedly has Java bindings. Check out the descriptions on http://www.fftw.org/download.html .
Reinderien
2010-06-20 19:56:13
+1
A:
There are several FFT libraries, for example Apache Commons Math includes a FFT.
Bear in mind, though, that spectrum estimation is something more complicated than simply making a Fourier transform (DFT). (It's true, though, that the most basic method, the Periodogram, amounts to computing the DFT and taking its absolute value).
leonbloy
2010-06-21 03:37:32