Audio Processing

I'm new to matlab, i was given the below scenario,

"Generate spectrographs for few WAV song tracks . Here we will split the time dimensions into frames of 10mS and for every 10mS frame have to compute the FFT to generate the spectrograph. Split the frequency band into 50 logarithmic intervals. Compute the energy level at every frequency band per every frame. If i do so, would be able to generate matrix of 50 x T where T is the number of frames of song track." Can any one help me with this

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer