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[Nature Recordists] Mic Noise Reports (was Physics of moisture-ind=

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Subject: [Nature Recordists] Mic Noise Reports (was Physics of moisture-ind=
From: Rob Danielson <>
uced mic noise


Hi Scott--
I'm starting this new subject in hopes of reducing confusion.  Rob D.

=3D =3D =3D =3D

At 9:10 AM -0800 1/4/10, Scott Fraser wrote:
>
>
><<My advice is for those of us who have had these problems is to put
>together a database of the model of mics, noise events, conditions,
>time, age of mic, etc., to see if there is any type of correlation
>that can be gleaned form this data. Perhaps a pattern will never be
>found. But at least we can perhaps get some idea of what mics have
>what problem under what conditions. Mics that perform well and that
>don't make it to the "event list" would probably be good candidates
>for field work.>>
>
>Good idea.
>
>Mics: (2X) AKG C451/CK1/A51 swivel joints. (Externally polarized
>condenser.) Inside Rycote blimp with fabric cover & furry windshield.
>Noise event: Frequent (several per second) popping.
>Conditions: Tropical rainforest, Costa Rica.
>Time: Daytime.
>Age of mics: Probably at least 12 - 15 years.
>
>The solution:
>
>Mic: AudioTechnica AT825 (Electret) Inside Rycote blimp with fabric
>cover & furry windshield.
>Noise event: None detected.
>Conditions: Tropical rainforest, including several rain events, Costa
>Rica.
>Time: day & night.
>Age of mic: Less than a year.
>
>Additionally:
>
>Mics: Built-in condensers Sony PCM50. (Presumably electrets.) Inside
>Rycote furry windshield.
>Noise event: None detected.
>Conditions: Tropical, hot humid. Bali, Indonesia.
>Time: Day & night.
>Age of mics: Less than a year.
>
>Scott Fraser
>
>
>

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