Comment by LeegleechN

It's unfortunate that the article doesn't get into the fundamental limits of spectrogram resolution which are based on the famous uncertainty principle(https://en.wikipedia.org/wiki/Fourier_transform#Uncertainty_...). For example there is a fundamental tradeoff between frequency resolution and time resolution similar to the position/momentum tradeoff in quantum mechanics. The Continuous Wavelet Transform which is alluded to in the article is a way to tune that tradeoff by frequency bin to best align with human sound perception.