If you google 'large eddy simulation for aeroacoustics' , you will find downloadable pdf version. It is very good book starting with theoretical fundamental concepts and slowly it take you through various analogies, practices, recent trends etc. Final section gives you an idea on industrial practices in the aeroacoustics field of research.
Hope it is useful to you.
@ Mr. George : Thanks for providing codes. I will have a look.
Well, It depends on your problem. The main source of sound generation is the interaction between flow and solid boundary. If the solid boundary is rigid and not moving, you can use the Curl analogy. For the case in which the solid boundary is moving, you have to apply the Ffowcs Williams and Hawkings based on Lighthill's acoustic analogy to predict the pressure sound level.