Issue I have this matlab code to display image object after do super spectrogram (stft, couple plca…) t = z2 *stft_options.hop/stft_options.sr; f = stft_options.sr*[0:size(spec_t,1)-1]/stft_options.N/1000; max_val = max(max(db(abs(spec_t)))); imagesc(t, f, db(abs(spec_t)),[max_val-60 max_val]); And get this result: I was porting to C++
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