I need to make a band pass filter perhaps a single low pass or high pass will do but to be certain I want to centre around the human voice range (what is it btw ?) i was thinking thhe op amp with the two Rs and Cs but is there something even more selective like using inductances ? what formula do u use in a RL filter and what is thhe schematic ?[/QUOTE said:
human voice b/w overall is 20hz to 20 khz but u can reduce according to application,
plz conform
also u can make band pass filter w/o inductors using higher order filters or elliptical and chebshev responses.
wt is the attenuation and cut off freq requirements ,