slight high pitched noise on at897 when on cam at DVinfo.net
DV Info Net

Go Back   DV Info Net > The Tools of DV and HD Production > All Things Audio

All Things Audio
Everything Audio, from acquisition to postproduction.

Reply
 
Thread Tools Search this Thread
Old May 29th, 2005, 03:01 PM   #1
New Boot
 
Join Date: May 2005
Posts: 17
slight high pitched noise on at897 when on cam

Hey guys - somewhat of a newbie question here.
Decided to finally upgrade my audio options and bought the AT897, the Beachtek 2S and respective shock mounts. I'll obviously be usng the AT897 primarily on a boom, but when I do mount on my cam (gs400), the voices are quite clean, but I am getting a slight higher pitch noise that runs constant throughout.

Here are my settings:

manual audio on cam - no AGC
Mono setting on Beachtek, with both channels turned all the way up (no, turning these down did not help)
Grounding set to G1 (G2 did not change anything)

I know these are difficult to answer on a message board and not looking at it in person, but any advice or experience on settings would be greatly appreciated.

Thanks to all on this great forum for your help.
Marc Lipschultz is offline   Reply With Quote
Old May 30th, 2005, 10:22 AM   #2
Major Player
 
Join Date: May 2005
Location: Stockholm - Sweden
Posts: 344
Quote:
Originally Posted by Marc Lipschultz
...but I am getting a slight higher pitch noise that runs constant throughout.
Have you tried to remove the mic itself from the camera, or more precise, move the mic away from the camera?

Most cameras generate a high pitch sound that the microphones are more than happy to pick up when they are mounted on the camera. Try to have the mic in your hand, 20cm from the camera. Does the high pitched sound go away?

/Roger
Roger Averdahl is offline   Reply With Quote
Old May 30th, 2005, 11:40 PM   #3
New Boot
 
Join Date: May 2005
Posts: 17
Thanks, I'll try that. I suspect I'll be fine on the boom - I just have a few occasions when I need a mounted mic on the cam. Fortunately, that's rare.

Thanks again
Quote:
Originally Posted by Roger Averdahl
Have you tried to remove the mic itself from the camera, or more precise, move the mic away from the camera?

Most cameras generate a high pitch sound that the microphones are more than happy to pick up when they are mounted on the camera. Try to have the mic in your hand, 20cm from the camera. Does the high pitched sound go away?

/Roger
Marc Lipschultz is offline   Reply With Quote
Old May 30th, 2005, 11:48 PM   #4
Major Player
 
Join Date: May 2005
Location: NYC
Posts: 516
i would try and gauge how far the mic needs to be from the camera to eliminate the audible noise you're hearing. some shock mounts will move the mic farther away from the camera than others. you might be able to get away with a different shock mount for those times you need the mic on camera.
Henry Cho is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > All Things Audio

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



All times are GMT -6. The time now is 07:43 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network