jojek
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Order analysis or order tracking
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1 votes

Well my friend, if you read the following B&K tutorial about the Order Tracking, then you should encounter so called Vold-Kalman Order Filtering. Personally I don't like it (rather prefer Chirp-...

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how can I calculate pitch deviation in a large collection of audio files?
1 votes

I think that you can find some tools here: Vamp Plugins. These plugins can run standalone or in Sonic Visualizer. You also have Aubio plugin, mentioned by pichenettes, or ones created by guys at ...

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Wavelet thresholding
1 votes

For a given threshold $\lambda$ (that can be dependent on resolution level), and value of wavelet coefficient $d$, hard thresholding is defined as: $ D^H(d|\lambda)=\begin{cases} 0,&...

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what is standard acoustic volume
1 votes

Normally it is 94 dB of Sound Pressure Level, where 0 dB is 20 µPa of acoustic pressure. This is the SPL you will find in most of the acoustic calibrators for measurement microphones.

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Working with a sound's magnitude instead of amplitude
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I am not sure what do you mean by magnitude, but you should be getting a waveform that's perfectly fine for further analysis you wish to do. Just keep in mind that you don't know the frequency ...

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Calculate algorithm's MIPS from cycles?
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The Naive way is to do 6 846 310 893 / 45 = 152 140 242 ~ 152 MIPS. This makes an assumption that each instruction takes exactly one cycle on your processor. Another approach would be to use tool ...

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Using k Nearest Neighbour & Dynamic Time Warping for keyword spotting
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If you want to use the k-NN in conjunction with DTW, then it's quite easy. Assuming that you have the speech corpora of keywords you should do the following at the training stage: Each keyword should ...

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Enlarging a picture by adding pixels in matlab
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If you have the Image Processing Toolbox then you might want to use the imresize function. It allows you to choose various interpolation algorithms. Help is very clear on that.

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Using DTW on the MFCC's to match a spoken word to a template
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I think that this approach should work rather well (I did very similar project few years ago). Things you might consider: You probably might want to use pre-emphasis filter on a signal. In addition ...

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Mixed time/frequency domain data
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I believe that if you are already using measurements with sweep sine, then the whole procedure of obtaining frequency response is pretty straightforward. Let me describe whole procedure from the ...

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A question about spectral leakage
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First, very short explanation is that if you do that, it will make Heisenberg angry and he will sent a Shrodinger's Cat after you ;) Accordingly to Uncertainty Principle you must always sacrifice ...

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Errors when converting from digital filter object to transfer function
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-1 votes

Generally you should never use the Transfer Function syntax. Look how your poles are closely placed next to the unit circle. With high order Butterworth filters you will see the effect of round-off ...

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FFT on Hamming Window Function
-1 votes

Your procedure is kind of wrong. You should: Read the signal from a file. Create the Hamming window of the same length Multiply window by signal (on sample-by-sample basis) Take the FFT Therefore ...

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Implementing short-time Fourier transform
-1 votes

To make things easier, I suggest you to use MATLAB function buffer. Regarding storage of your results I recommend to save it into matrix with dimensions no_frames and $512$. So if your current frame ...

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