How to make the spectrogram function output the actual frequencies instead of the normalized ones?

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ska ksans 2019-7-1

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https://ww2.mathworks.cn/matlabcentral/answers/469611-how-to-make-the-spectrogram-function-output-the-actual-frequencies-instead-of-the-normalized-ones

回答： Chinmay Anand 2019-7-1

This program performs a frequency sweep on a song and prints out the spectrogram, however, it displays normalized frequencies and I was wondering if there's any way to get it to display the actual frequencies instead. Here's the code:

wave_file = 'Here_Comes_a_Special_boy.wav';
[abc,fs] = audioread(wave_file);
noverlap = [];
spectrogram(abc,256,noverlap,[]);

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Answer 1

Chinmay Anand 2019-7-1

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https://ww2.mathworks.cn/matlabcentral/answers/469611-how-to-make-the-spectrogram-function-output-the-actual-frequencies-instead-of-the-normalized-ones#answer_381438

I think this answer will be helpful for you.

https://www.mathworks.com/matlabcentral/answers/265969-how-to-understand-spectrogram-function

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How to make the spectrogram function output the actual frequencies instead of the normalized ones?

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How to make the spectrogram function output the actual frequencies instead of the normalized ones?

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