Text recognition with soundplay

Hi,

I would like to start by letting you know that my knowledge of scripting or Autoit3 is rather limited, what I want to create is a script that recognizes a specific word in a specific area and then plays kat.wav once.

the coordinates for the box:

0.800		 400,800
random text
random text
kat <- (SoundPlay(@WindowsDir & "\media\kat.wav", 1))
random text
0,1000				 400,1000

What I don't know is how I make is a specific area where text will be recognized and then play the media kat.wav once Autoit3 recognizes the text, as you can see my knowledge is quite limited.

I have used google and autoitscript's search engine without finding anything that would help me, mostly i just got confused by what i tried to understand.

Regards,
P