If I have a spectral data set showing measured energy on the y-axis and frequency on the x-axis, how would I go about fitting this to a beta distribution?
For example, lets say I had the data for the following curves showing spectrum for this ship:
How do I determine the beta curve fit parameters to say the blue line?
Taking it one step further. If I have a wav sound file of the sound of an engine, how would I do the same thing?
I attempted to use the supplied answer and got an error as follows:
The data file can be downloaded from the following URL: acoustic power spectrum data to 3k hz
The overall goal here is to generate a curve approximating the shape like this: