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Wouldn't a wind-screen do the job? |
Klaus Heyne wrote on Fri, 07 May 2004 15:01 |
...(electrostatically charged and therefore attractive) capsule area. |
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Klaus Heyne wrote on Fri, 07 May 2004 15:01 ...(electrostatically charged and therefore attractive) capsule area. |
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Does this imply electret capsules attract dust at all times, compared to externally polarized types only when they are active? |
Al
Post by: djwayne on May 13, 2005, 11:40:46 AM My other mics, I keep in a drawer in an old wooden machinist's tool box. Wayne Kraft Owner/Artist Private Home Studio Post by: David Satz on August 12, 2005, 10:31:56 AM
Nick, condenser microphones attract dust and dirt because of electrostatic charges in the capsule. Ribbon microphones don't use electrostatic charges, but they do contain strong permanent magnets. Thus a ribbon microphone can sometimes be a bit more dangerous to other objects in its environment--recorded tapes, for example, or toes that it is dropped on--than the environment is to the microphone. Post by: AB77 on February 26, 2006, 06:33:55 PM THANKS, AB Foam in this application needs to be of the open cell variety, therefore the material (plastic) choices are limited, as far as I know, to the type that sheds and deteriorates with time. We are anxiously awaiting a new foam material which does not shed... Inventors to the rescue! K.H. Post by: mikey on October 19, 2007, 08:30:04 PM What about some of these other microphones that have foam inside the mic heads.I've taken a few mics apart(one to many ) and the foam turned to powder when i touched it.Does that affect the sound when the foam deteriorates like that. Post by: Klaus Heyne on October 19, 2007, 10:19:09 PM ElectroVoice mics like the RE 20 are notorious candidates for having this problem, and their inner foam construction around the capsule needs to be replaced every time such a mic goes in for service. Post by: zione on March 09, 2008, 07:02:31 PM A well known tech gave this advice to a collegue who owns a studio located very close to the Mediterranean: Storing the mics in jars with silica gel inside. I also store my mics this way; I've found a silica gel that change color from yellow to blue when it absorbs humidity, it takes 2-3 months into the jar to became blue. Do you see any issue, for example excessive dryness, using this method? Cheers Ugo Venturino PS: sorry for the poor quality pics Post by: Klaus Heyne on March 09, 2008, 11:04:15 PM Your method of keeping a microphone dry seems sound, and I see no chance for 'excessive dryness'. I am just curious about the particular color changes you mention: the silica gel I use is BLUE when dry, and YELLOW-TAN when saturated. You may want to double check this! Post by: zione on March 10, 2008, 04:04:41 AM BTW when the silica grains are saturated if you put them for 3 hour in the owen at 90 Post by: aracu on July 28, 2008, 11:21:48 PM I have gotten in a habit of using a pair of Sennheiser 800 on film shoots and keeping them in a humid room. I noticed that one of them had dropped about 10 db in output, and the other had become hypersensitive to movement, or being touched, which would cause the sound to distort and go down in volume for a moment. Sennheiser repair said these problems could not be caused by humidity, but just to make sure I kept the mics for a couple days in an airtight bag with a large quantity of silica gel crystals wrapped in fabric (the crystals can be bought cheap, marketed as kitty litter in pet shops). The mics sounded to me as good as new afterwards. |