naturerecordists
[Top] [All Lists]

Mic Noise Reports (was Physics of moisture-induced mic noise

Subject: Mic Noise Reports (was Physics of moisture-induced mic noise
From: "Rob Danielson" danielson_audio
Date: Mon Jan 4, 2010 2:18 pm ((PST))
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
>
>
>


--









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

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