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DFT Magnitude/Power Spectra
I often get confused about the scaling of magnitude and power spectra. I think I've worked it out so I'm puttin it here for my own benefit, and maybe the benefit of someone on the internet. If I'm...
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Log-frequency Spectrograms
Tensai asked me how I made my graphs in my ringtones post. I'd like to blather on about the graphs and why they're cool and how you can make them, because that's the sort of thing I'm good at. In the...
View ArticleFFTW Wisdom
The Fastest Fourier Transform in the West has some internal parameters for fine tuning exactly how it performs the FFT. For optimal results, you measure the effect of these parameters directly to find...
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Browsing index pages (3 articles)
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