move a camera tothe point more sound is heared

See guyz, i m completely new here.. i don't know how to make a start, i will just explain my project plz help me howto do it,
See v r planning to use adc 0809 interfaced with 8051, adc is given a input of 4 condenser microphones, i am planning to connect the 4 mics in such a way that when one of the mic gets high output compared to other 3, then the motor moves and point to that particular point.
how can i do this?
its coding part and connection and all ???

This sounds quite ambitious for a first project.
Do you have experience with micro-controllers or electronics.

We can help with general advice but not designing everything.

Take a look at the tutorial.
It covers the main part of connecting to the ADC809 and basic coding.
http://www.8051projects.net/wiki/ADC0808_Interfacing_Tutorial

The tutorial monitors a single voltage, but can easily be increased to handle four.

Read ADC values, Do some averaging (its needed to get a clean input) and finally your algorithm which does the comparison and drive motor. Start with link provided by ExperimenterUK.