TECHNICAL ADVICE ON CANON XLR 12dB GAIN UP ? 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 July 16th, 2008, 11:51 AM   #1
Major Player
 
Join Date: Nov 2006
Location: cape town South-Africa
Posts: 251
TECHNICAL ADVICE ON CANON XLR 12dB GAIN UP ?

i Have tried the search function on the forum regarding a more technical explanation on when and why one should use (activate the XLR 12Db gain up) function as per Canon XLH1 menu.


I am not sound "Literate" but need more information on the pro en con's of this function.

Thank You .
Herman Van Deventer is offline   Reply With Quote
Old July 19th, 2008, 08:03 AM   #2
Major Player
 
Join Date: Jun 2004
Location: McLean, VA United States
Posts: 749
The pro is that use of this option will raise the self noise of the microphone and the camera's preamp noise 12 dB further above the quantizing noise of the camera's A/D converter. This would result in a tiny (1 dB or less) improvement in recorded signal to noise ratio. The con is that the dynamic range of the system (intensity of the loudest signal which can be recorded without distortion) is reduced by 12 db. It's not a good trade. You would use this gain-up with a microphone with very low sensitivity and/or a very weak sound source if you did not have an external pre-amp available.
A. J. deLange is offline   Reply With Quote
Old July 19th, 2008, 10:48 AM   #3
Major Player
 
Join Date: Nov 2006
Location: cape town South-Africa
Posts: 251
Rock solid answer . Thank You . A.J.
Herman Van Deventer 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 05:06 PM.


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