 | | Re: Homebrew sensors? —Michael Gasperi
| | | | There is a single channel sound sensor on my web page: (URL) was really designed for picking up loud noises like claps. What you want would require two mics and a circuit that would take the difference between the sound levels. Better yet it should (...) (26 years ago, 13-Nov-98, to lugnet.robotics)
| | | | | | | | | | Re: Homebrew sensors? —Daniel Miller
| | | | | (...) I was thinking of something that sensed amplitude, not frequency. (Like the light sensor, which sees brightness, not color.) Of course, whatever you want for yourself is best. :) I know the logic of taking two sensors and differentiating to (...) (26 years ago, 14-Nov-98, to lugnet.robotics)
| | | | | | | | | | | | Re: Homebrew sensors? —Ben Laurie
| | | | | (...) So's Michael - he's proposing a notch filter so you get the amplitude at a particular frequency, which may be better for a seeking application. Cheers, Ben. (26 years ago, 14-Nov-98, to lugnet.robotics)
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