Re: Physics of moisture-induced mic noise

["Mike Rooke" picnet2]

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.

-Mike.


--- In  "Grant Finlay" <> w=
rote:
>
> 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.
>