Hi.I'm a noob to designing active filters. I need to design and build a very narrowband-pass filter audio amp. I know the frequecy band I want to amplifiy, and I know exactly how it should sound through my headphones, I've been playing with AD's Filter Wizard but I've no idea what characteristics I should be aiming for in the frequency responce curve! Here are the details of the device:
Frequecy band: 6.5-8 kHz
Input device: piezo transducer
Output device: 8 ohm headphones
Power source: 1 x 9V battery
The sound response I'm looking for is a strong amplification of the 6.5-8 kHz band, but with a very sharp roll-off either side of this. All I should be able to hear through the headphones is a series of clicks at those particular frqueces and very little other sound.
Hope this makes sense to. Cheers!