[Top] [All Lists]

Re: Physics of moisture-induced mic noise

Subject: Re: Physics of moisture-induced mic noise
From: "Mike Rooke" picnet2
Date: Thu Jan 7, 2010 2:06 am ((PST))
I tested an omni taking it from outdoors where it had been all night from -=
19 to -15C when i moved it to a sauna at +65C with 60% humidity. Left it fo=
r 15 minutes recording and listened for any pops /sissle / "wrong" sounds, =
nothing at all - continued working as expected.  The mic stand was nice and=
 warm and thawed out too :)

If it drops to -20C again Ill repeat the test, cycling an electret with rap=
id temperature swings may prematurely age the electret / reduce the sensiti=
vity - but in the interests of testing if the capsule can withstand such th=
ermal shocks / swings, its interesting.


--- In  "Grant Finlay" <> w=
> FYI:
> Don't forget that condensation will form regardless of the mic if you tak=
e it from a cool to warm environment.
> I leave mine outside overnight or give it chance to acclimatize before do=
ing any recording.
> Regards,
> Grant.

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU