k-khalid:
the serial write will send the bytes from voice recognition to processing I am assuming.
Didn't you write the program?
There are two functions in your program one is called printVR() and the other is called printSignature() - what is each of them for?
I don't know what you mean by debugging code
I just mean things that you put in (usually Serial.print() statements) to help you identify what is causing a problem.
...R