Audio-technica 835b shotgun mic at DVinfo.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 January 26th, 2006, 03:12 PM   #1
Regular Crew
 
Join Date: Jan 2006
Location: Santa Fe, Texas
Posts: 26
Audio-technica 835b shotgun mic

How come when recording with this shotgun mic attached to the shoe on my Canon GL-2, that when I talk from the operating mode that it is picking up my voice? I was hoping to use my own audio and commentary from my headset mic instead of pickup from the shotgun.

I thought that a shotgun mic would cancel out sound from the rear. In fact the polar pattern that is included with the instructions shows no sound pick-up from the rear of the mic. http://www.audio-technica.com/cms/wi...519/index.html

Anyone have any input on this

Thanks,

John
__________________
John
John Astad is offline   Reply With Quote
Old January 26th, 2006, 03:27 PM   #2
 
Join Date: Jan 2004
Location: Stockton, UT
Posts: 5,648
No shotgun completely ignores what's behind it in close quarters, and if you're working in small rooms that are reflective, the mic may actually pick up more of your voice than the voice of the subject that is 3' away, due to reflections in the room.
Shotgun mics aren't really great on-camera, despite all the marketing fotos that show otherwise. If you're really looking for an on-cam mic with decent rear rejection, look at the AT 4053 on the flip side of that website. But don't expect it to pick up subjects further than 24" or so with any real level.
__________________
Douglas Spotted Eagle/Spot
Author, producer, composer
Certified Sony Vegas Trainer
http://www.vasst.com
Douglas Spotted Eagle is offline   Reply With Quote
Old January 26th, 2006, 03:45 PM   #3
Regular Crew
 
Join Date: Jan 2006
Location: Santa Fe, Texas
Posts: 26
GL-2 external mics

Thanks for the input Douglas. As you described I was in a small room recording with the AT 835b and it does not reject my audio as I operate the video camera while attached to the shoe

Overall I was under the impression that an external mic would produce better audio than the one included (onboard) with the Canon Gl-2,.

I did an audio test, one with the GL-2 onboard mic and another with the AT 835b and could not hear any difference. This recording test was with the subject from 3 to 15 feet away.

So all the hoopla regarding the AT 835b mic is really unwarranted.

John
__________________
John
John Astad is offline   Reply With Quote
Old January 26th, 2006, 03:47 PM   #4
 
Join Date: Jan 2004
Location: Stockton, UT
Posts: 5,648
John, it's not just the AT, it's any shotgun. What I'd recommend, since you have the mic, is buy a mic boom stand, and get the shotgun close to the subject. That's how it should be done in all circumstances anyway. Mics are like handgrenades, they only work when they're near the target.
__________________
Douglas Spotted Eagle/Spot
Author, producer, composer
Certified Sony Vegas Trainer
http://www.vasst.com
Douglas Spotted Eagle is offline   Reply With Quote
Old January 26th, 2006, 04:11 PM   #5
Regular Crew
 
Join Date: Jan 2006
Location: Santa Fe, Texas
Posts: 26
Antoher trip to the audio store

Okay Douglas, I'll just have to make another trip to the store and pick up a mic boom stand. Thanks for setting me on the right path.
__________________
John
John Astad is offline   Reply With Quote
Old January 26th, 2006, 05:08 PM   #6
Inner Circle
 
Join Date: Mar 2005
Location: Hamilton, Ontario, Canada
Posts: 5,742
Quote:
Originally Posted by John Astad
...

I thought that a shotgun mic would cancel out sound from the rear. In fact the polar pattern that is included with the instructions shows no sound pick-up from the rear of the mic.

Take another look at that polar pattern. There are signifigant lobes at 120 and 240 degrees. Straight ahead the response is 25 db while the side lobes at 10db. If you're 1 foot away from the at mic and the subject is 10 feet away in the front, think about what the relative intensity of your voice and his will be as heard from the microphone position.

IMHO, commentary would better be added as a separate recording for voice over made later "in studio" and married to the video in post rather than recording as you shoot, if it's at all possible.
__________________
Good news, Cousins! This week's chocolate ration is 15 grams!
Steve House is offline   Reply With Quote
Old January 26th, 2006, 05:15 PM   #7
Regular Crew
 
Join Date: Jan 2006
Location: Santa Fe, Texas
Posts: 26
Commentary in Post

Steve, you are right. Any commentary I'll just dub in post production, that will take of that. Thanks for you input
__________________
John
John Astad 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...

Professional Video
(800) 833-4801
Portland, OR

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

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

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

 



Google
 

All times are GMT -6. The time now is 11:27 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network