What next with this audio codec project? Thank you!!!

Generally when selecting a device the key care-abouts in no particular order are:

• Performance
• Price
• Power
• Peripherals
• Size

What requirements do you have for your project?  For example, since you want to use an audio codec then you'll need 1 serial port to connect to it.  What other peripherals will you need?  Do you have major cost constraints?  For example, would you consider a $17 processor cheap or expensive?  What kind of user interface do you need?  Just a few push-buttons, or fancy 3D graphics?

Do you have engineers with a lot of experience in fixed-point math?  If not, I suggest you consider a floating point processor like the brand new C6747:

http://focus.ti.com/docs/prod/folders/print/tms320c6747.html

It costs under $17 in 100u quantities and supports both fixed-point and floating-point math.  Eliminating "step 1" from your development schedule would save you tremendous amounts of time and money.  In terms of estimating complexity the best thing to do would be to implement the algorithm on an eval board and then measure the number of cycles it takes.  There's hardware inside the core to allow you to easily measure the number of cycles an algorithm takes.

You can order samples directly from the product page.  This order would be fulfilled by one of TI's distributors.

Brad