i try to attached it but cant and i only know imageshack to host my image.
My other post at edaboard forum.i think i succeed to design bandpass after testing it yesterday evening at lab but...ughhh...another problem...thankfully u mention it here about time opamp needed to build up signal....another problem to solve...i have samples of m16 gunshots, all the gunshot sample duration is 2 seconds.Do you think it is enough time to op amp build signal? thanks again audioguru for helping me alot