How to plot a linear Frequency vs time curve?

I need to plot frequency v/s time from the data obtained from Audio signal. I currently know how to get the spectrogram data but that does not make things clear... I am looking for a method to plot frequency with time or a way to obtain a matrix of these parameters... so that I can compare frequency for different sound tracks and identify how frequency the process repeats.

Answer 1

[Brian Hannan]

Akshat, there are a number of different ways to get a time-frequency representation of a signal. See the Time-Frequency Analysis page and the wavelet Time-Frequency Analysis page. This intro to time-frequency analysis might give you some ideas. For example, if the spectrogram's resolution isn't clear enough for you, you could try fsst().