Short time energy, st zero crossing etc.

I am last year student in electronic engineering in Turkey and trying to finish my bachelor's degree. I have a homework about ' Finding and plotting Short - Time Energy, Short - Time Zero crossing, ST autocorrelation and Pitch estimation in Matlab with 2 seconds of my voice ( for example : saying 'a' 2 seconds and 'z' 2 seconds) I have 2 days for finishing it and I have been trying to do that for 3 weeks but I can not. Can you please help????? i need the full coding please. I've been trying to find codes and try to finish it but i couldn't find anything.

[Paul Hoffrichter]

Put up the best code that you have from your efforts in the past 3 weeks. Something in that code must be good. Then tell us where you are having trouble.

Answer 1

[Paul Hoffrichter]

See if this can help you with what you have already done.

https://www.mathworks.com/matlabcentral/fileexchange/23571-short-time-energy-and-zero-crossing-rate?s_tid=answers_rc2-3_p6_Topic