Re: [math] transform - fft documentation bug? proposal window function & sonogram

2007-12-09 Thread Carsten Krüger
> they are. I'm -0 on the spectrogram, having personally spent time > trying to use a naive spectrogram as a power spectrum estimator. I > only spent enough time on that task > to come to the understanding that it wasn't as simple as it seemed > it should be. it is easy, example Matlab code (may

[math] transform - fft documentation bug? proposal window function & sonogram

2007-12-03 Thread Carsten Krüger
Hello, the class documentation[1] of fft states "We require the length of data set to be power of 2" and the method documenation[1] this "Perform the base-4 Cooley-Tukey FFT algorithm (including inverse)." One must be wrong: base-4 alogrithm means that the length of data has to be power of 4 fft