Michael Watterson wrote: >> Why can't you just use a sound card? > > I assumed a Laptop/Notebook. > > Desktop sales a minority now. The OP didn't say, but either way this is surely a off the shelf device. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .