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Re: high pass filter on EM172 capsules

Subject: Re: high pass filter on EM172 capsules
From: "Gianni Pavan" gpavan1960
Date: Fri Apr 8, 2016 3:07 am ((PDT))
Hi Dan, thanks, great and simple. I'll do test with both P48 powering and
battery powering.

For P48 I'd try with SimplestP48. Alternatives ?   (my philosophy is to
keep as simple as possible)

For usual battery powering which is the simplest circuit design ?

Gianni

2016-04-08 6:24 GMT+02:00 Dan Dugan  [naturerecordists] <
>:

>
>
> 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
> starts. Sensitive to the source and destination impedances, so it=92s a
> custom thing. Start with 1uF and see what happens.
>
> -Dan
>
> Hi all, EM172 and other capsules with PIP powering are a great resource
> for building both specialized and general purpose microphones. I some cas=
es
> it would be useful to have a high pass filter to limit low frequency nois=
e,
> 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 inpu=
t,
> eventually also considering to replace the PIP from recorder with a
> dedicated battery.
>
> Gianni Pavan
>
>
>
>



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