The resolution on the spectrogram plot is WAY too low

So, Im trying to plot the spectrogram for a time series sampled at 24KHz, but I am interested in the 3-300 Hz range. However, when I run the code below, it returns this plot

spectrogram(datVec,fs,[],[0,300],fs)
%fs being my sampling frequency, datVec being my time series

This frequency resolution is obviously quite low and I am not sure what to do about this. Changing the overlap window has not helped.

Answer 1

[Star Strider]

Experiment with more elements to your frequency vector, for example:

spectrogram(datVec,fs,[],[3:3:300],fs)

I’m not certain that will do what you want, however it’s always best to experiment.

[Hunter Hakimian]

Ah! Such a simple fix. Thanks so much!

[Star Strider]

As always, my pleasure!