biquad filters were just something I pulled off the cookbook, assuming it would be the next place to go. And you know what they say about assume.... ;/ Coding is a yearly thing I do in the winter months, I try and limit how much time I spend on it as it is as far as time and energy are concerned, very demanding. I intend to get as much done as pos without using libraries, get the main elements there and working, and then I'll expand into ladspa in the future. (*james)->::~(sirromseventyfive)~++ _________________________________________________________________ Express yourself with cool new emoticons http://www.msn.co.uk/specials/myemo