audio plot of a avi file

hi i am doing a project in video mining. i have to plot the AUDIO SPECTRUM of the video. in simple the audio i have to plot.

i searched several sites but the problem is they have mentioned only plot of .wav files .

i need a solution in matlab to plot the audio . please suggest

Answer 1

[Daniel Shub]

You can use an external program to extract the audio from the avi file into a wav file and use the solutions you already have. Depending on you OS you can probably find a program with a CLI and fully automate the process from MATLAB.

[Max]

thanx daniel ..is it true that we cant read or extract audio from any multimedia files for analysis

[Daniel Shub]

I don't think there is a built in MATLAB function for doing it. I am betting you could write your own function to do it, but I don't see why you would want to.

Answer 2

[Max]

thanx daniel ..is it true that we cant read or extract audio from any multimedia files for analysis Comment on this Answer

Answer 3

[Max]

or in simulink is there a provision to plot the avi file audio