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Re: high pass filter on EM172 capsules

Subject: Re: high pass filter on EM172 capsules
From: "Dan Dugan" dandugan_1999
Date: Thu Apr 7, 2016 9:24 pm ((PDT))
A capacitor will do both, roll off the low frequencies and block PIP so you=
 can use your own supply. The smaller the cap, the higher the rolloff start=
s. Sensitive to the source and destination impedances, so it=92s a custom t=
hing. Start with 1uF and see what happens.

-Dan

> Hi all, EM172 and other capsules with PIP powering are a great resource f=
or building both specialized and general purpose microphones. I some cases =
it would be useful to have a high pass filter to limit low frequency noise,=
 e.g. generated by breeze or wind.
>
> I would ask to those more expert than me in electronics if it is possible=
 to insert a simple HP filter in between the capsule and the recorder input=
, eventually also considering to replace the PIP from recorder with a dedic=
ated battery.
>
> Gianni Pavan









"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.



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