Speech Spectrogram
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Takes a vector containing audio data samples as an input, computes short-time Fourier transform (STFT) and plots the STFT power spectrum trajectories across time.
Cite As
Kamil Wojcicki (2020). Speech Spectrogram (https://www.mathworks.com/matlabcentral/fileexchange/29596-speech-spectrogram), MATLAB Central File Exchange. Retrieved .
Comments and Ratings (7)
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Acknowledgements
Inspired by: M-code LaTeX Package
Inspired: Analysis Modification Synthesis, Phase Spectrum Compensation, Ideal Binary Mask
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mehmet kavruk (view profile)
Naman Gogia (view profile)
Naman Gogia (view profile)
Sha (view profile)
Hi, How do you choose the vector of spectrogram limits?
gbernardi (view profile)
I really like the visual result of your function. I have a question, though:
where does that black dots grid-like superimposed to the spectrograms come from?
Kamil Wojcicki (view profile)
Hi Alecsander, you can pass color map as one of the inputs to the myspectrogram method. In the test_myspectrogram.m try, f.e.,
myspectrogram( speech.(method), fs, [22 1], @hamming, 2048, [-59 -1], false, 'hot', false, 'per' );
Alternatively you can specify color map for the current figure after calling the myspectrogram method, e.g.,
myspectrogram( speech.(method), fs );
colormap hot;
%colormap jet;
See also http://www.mathworks.com/help/techdoc/ref/colormap.html
Alecsander Eitan (view profile)
Very nice and works well.
I'll appreciate if it could support color spectrogram.