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

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ska ksans
ska ksans 2019-7-1
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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Chinmay Anand
Chinmay Anand 2019-7-1

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