user2348114
  • Member for 6 years, 7 months
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  • Portland, OR, USA
Neural Network: Spectrogram Dimension
1 votes

If you're looking to model timbre (i.e. how a certain type of sounds "looks" in the spectrogram), then presumably you'd need to look at all frequencies at once (i.e. the TxF signal). This is because ...

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Why is not Fourier Transform Good for Non-linear Processes
1 votes

Part of the confusion I think comes from the fact that FFTs are in practice used in modeling nonlinear systems. FFTs are linear; they're just a linear combination of sinusoidal signals (the "root" ...

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FFT Background subtraction in MATLAB
1 votes

I'm assuming since you didn't say that you're working with audio. But my answer generally applies if you're working with images/video as well. Unless the background you're trying to subtract is ...

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Log-Polar DFT Based Scale-Invariant Image Registration
1 votes

If you want something really robust, but that might be more computationally expensive, you might want to check out the algorithm I implemented here. It implements the paper, "Robust Image Registration ...

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How to filter key clicks?
1 votes

Assuming from your screenshot that the frequency magnitudes of "key clicks" are always higher (brighter) than the normal signal, you could just employ a basic Limiter? In other words, if a frequency ...

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Blind Signal separation vs .... what?
0 votes

They keywords you want to google are "supervised source separation" and "semi-supervised separation". Basically, if you have some information about the signals, you can typically leverage that to get ...

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A Music Recommender System by Using Basis Functions and Inter Correlations
Accepted answer
0 votes

So, what it sounds like your teacher is looking for is convolution (or correlation) of the music track spectrograms. You start out (presumably) with a music track you want something similar to and a ...

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Scale and Rotation invariant Template Matching
0 votes

Perhaps you'll find this Matlab code I wrote useful: Fractal Mosaics It implements the paper "Robust Image Registration Using Log-Polar Transform" (pdf) in an artistic application that required more ...

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Remove a known wav file from recorded file
-1 votes

So I actually just spent the last year working on a website that does just this, www.tuneout.io. I just launched a free Beta version. Curious to hear if it works for you. Since SO doesn't like here's-...

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Voice recovery with high-noise, low-gain
-1 votes

I might try Audiophonic, a web-based podcast post-production service. It does exactly the type of processing you're wanting automatically. It's free for the first two hours a month of audio (as of ...

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