[sdiy] Good 24db/oct HP-LP-BP-Notch filter Schematics ??
rburnett at richieburnett.co.uk
Fri Mar 7 00:09:26 CET 2014
Maybe somebody who owns one of these modules can feed in a known signal (like white noise, or a low pitch sawtooth) and upload 5 second samples of each one of the outputs with the cutoff set at say 1 kHz.
Its easy to determine the filter roll-off rates from the spectrum of such results.
Sent from my Xperia SP on O2
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