how to write the matlab codes?

For a speech signal of bit rate 64 Kbps and sampling frequency of 8Khz in digital transmission uses a speech sample of “A POT OF TEA HELPS TO PASS THE EVENING” for the given program a) Demonstrate the use of above speech by applying compression algorithm of Code excited predictive coding and plain Linear predictive coding with a Matlab program?? b) Represent the effectiveness of speech parameters such as reflection coefficients, pitch, gain and pitch delay used for the reconstruction of encoded speech data??

c) Critically Analyze the results obtained in terms of bit rate, total bits per frame and SNR Performance??

[Walter Roberson]

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