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Hitachi DFT hangs (it gets all the way to "Loading DFT" and hangs with a blinking cursor) when I use it on various computers (the latest computer to hang being a Dell Vostro 1000 laptop) and works on others.
What determines when it will hang and when it won't?
What similar program can I use (boot…
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I'm trying to implement a DFT-based 8-band equalizer for the sole purpose of learning. To prove that my DFT implementation works I fed an audio signal, analyzed it and then resynthesized it again with no modifications made to the frequency spectrum. So far so good.
I'm using the so-called 'standard…
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I'm trying to implement a DFT-based equalizer (not FFT) for the sole purpose of learning. To check if it works I took an audio signal, analyzed it and then resynthesized it again with no modifications made to the frequency spectrum. So far so good.
Now I tried to silence some frequency bands, just…
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I'm writing a very simple in-place DFT. I am using the formula shown here:
http://en.wikipedia.org/wiki/Discrete_Fourier_transform#Definition along with Euler's formula to avoid having to use a complex number class just for this. So far I have this:
private void fft(double[] data)
{
…
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I've been playing around a little with the Exocortex implementation of the FFT, but I'm having some problems.
First, after calculating the inverse FFT of an unchanged frequency spectrum obtained by a previous forward FFT, one would expect to get the original signal back, but this is not the case…
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