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MATLAB (MATrix LABoratory) is a numerical computing environment and a fourth-generation programming language. Use this tag with care.. see excerpt.

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Detecting a three-tone signal in real-time

Is that the FFT of your beep signal or of the beep mixed in with voice? Have you windowed the data? What does the FFT look like if you use a larger frequency spacing in your FFT (fewer data points)? …
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Is it possible to approximate given skewness and kurtosis values using an IFFT?

I have time domain data for a signal that behaves randomly but has non-random (non-Gaussian?) skewness and kurtosis values of ~0.9 and ~7.4, respectively. The FFT of the signal shows that it's not br …
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