For this homework, you need to visit Prof. Cleve Moler's Numerical Computing with Matlab website site to download a zip file containing the Matlab programs. You need to unzip the files in a directory where they can be found by Matlab.
The above version of touchtone.m breaks the recording into a fixed number of equally spaced segments, each corresponding to a single digit. Modify touchtone so that it automatically determines the number and the possibly disparate lengths of the segments. You may want to download this program to see how one can perform window-averaging of the data. You may use any part of the program in your assignment.
You must send me an electronic copy of your program. Submit a hard copy of the program together with numerical results and an explanation how you accomplish the above task.