Speaker Placement, Listening Room Design

I know the basics already - thick rug on floor, speakers at apices of equilateral triangle, diffuser such as a book case in the rear of the room. I need specific references to study such topics as how to place absorbent sound panels on walls, corners and ceilings. How to use sound meter or laptop software, mikes and decibel meters to measure outcomes. This is not so complicated that I need to pay someone thousands to design it and thousands more to install. I have a 12x22 foot room that needs acoustic treatment. Thanks for responses. Cardas has info on their website as does Ethan Winer.

I have had good experience with Ethan Winer. I took a picture from each corner of the room and mailed the four pictures to him. Ethan then made his recommendation.

I ended up buying 5 panels from him and they work well.

You will find the infromation you are looking for in Jim Smith's book "Getting Good Sound". It is the best $45 that I have spent. Nothing to lose; it comes with a money back gurantee.

The Decware website has a couple of excellent white papers on acoutsic treatments. The recommendations there worked for me.

Regards,
Jim

Thanks to all, Vett and J Bailey. I am picking up Owens Corning FRK Thursday morning. Starting to repaint room and have some floorplans drawn up already. I will post pictures of finished product.