>>Note that the Numerical Recipes code as it stands performs
>>octave-band analysis, that is, it will yield nine bands               
>Numerical Recipes code?  Is this a reference to the book:
>    Numerical Recipes in C?  or some other publication?
>              thanx in advance
>                        -Sean Nelson

yes it is, freely available in pdf and ps format from www.nr.com (follow the 
liks, cant remember the exact address)