Pro Audio Asylum

Posted by Palmer (P) on October 03, 2012 at 11:31:33

In Reply to: RE: Need Help Making a 3 pole active Low-Pass Filter posted by Hjourzt on September 29, 2012 at 18:53:16

I am curious - having done my fair share of ENG work, I have never encountered the problem you describe. How do you arrive at the 25K figure?
Is this a statement from the manufacturer of said motion detectors?

In any case you should look into other causes for these phenomena, I remain skeptical that the detectors are the culprit. I fail to see how the gear you describe - and which I also have extensively used - manages to somehow convert these frequencies into audible range at playback.


Try out the www.gearslutz.com forum - these folks will point you in the right direction for your filter.




When flying commercial you want the aircraft to be maintained and operated by sound standards.