Spectrogram: find the median of the power (dB) to plot with median threshold
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I have a spectrogram:
[s,w,t] = spectrogram(signal,blackmanharris(windLength),overlap,NFFT,fs,'yaxis');
and I want to plot it with a threshold represented by the median of the dB band, like this:
spectrogram(signal,blackmanharris(windLength),overlap,NFFT,...
fs,'yaxis', 'MinThreshold', median_dB)
How can I calculate the 'median_dB' so that it represents the median of the power/frequency vector?
I started with
s = abs(s);
s_dB = 10*log10(s);
threshold = median(s_dB)
s is actually a matrix and I do not seem to fully understand what the function does. Where do I go from here? Any help would be greatly appreciated!
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