Hi I was wondering if anyone has any experience in using DSPIC FD ( ie filter designer) . Does it work well? I want to design an 8 channel audio bandpass filter ie. 8 passbands across the range of 40 to 16 KHz . I have never used a DSPIC or a DSP for that matter. I guess I would need 4 DSPICs with stereo DACS , perhaps these dsPIC33FJ64GP802. Will I be able to have 2 filters running simultaneously in each DSP. Sorry I am a newbie at this though I have been using PICs for years I have never done any DSP type work. I could do these filters strictly analog but I like the idea of being able to change the filter characteristics in software. Thanks for any thoughts or pointing me in the right direction. Jim --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .