Removing Camera Noise 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 August 8th, 2005, 07:28 AM   #1
Regular Crew
 
Join Date: May 2005
Location: Madison, WI
Posts: 170
Removing Camera Noise

(I thought this was different enough to be it's own thread).

We are working on a short film for a competition. We have no budget so we're working with the tools we have on hand.

I needed to record some "ambient"\background sound since we wanted to ADR the very small amount of dialog. Since we're doing this on-the-cheap, I tried a couple of things, one of which was just to set my camera (Canon Optura 60) on a tripod where the action takes place and record using the on-camera mic.

I knew it was a stretch but we were running out of time and I thought the worst that could happen is that I'd have to go back with a real microphone.

So after importing the sound and dropping it into the timeline, it actually sounded pretty good! Bear in mind that the destination for this project is Flash Video, so it doesn't need to be THX or anything. In particular, there were many backround noises (trucks driving, church bells, etc.) that came in as if on cue!

So now I have this audio track that I'm fairly in love with but it does have a little of that high-pitched motor noise from the camera. I can hear it mixing with headphones so I'm not sure if it will be as prominent when converted to Flash and played back on computer speakers, but I'd like to see what I can do to clean it up.

I have Final Cut Express, Soundtrack and GarageBand and I'm wondering if there are any suggestions as far as types of EQ or EQ settings that I can use as a starting point to clean this up, or if any of these tools have something else that I could possibly use.

Any thoughts appreciated!
__________________
Jason J. Gullickson
Producer
the second society
http://2soc.net
Jason J. Gullickson is offline   Reply With Quote
Old August 8th, 2005, 08:15 AM   #2
 
Join Date: Jan 2004
Location: Stockton, UT
Posts: 5,648
If you're going to be compressing the audio, get it as clean as possible before final compression, or the noise will be glaring after pushing it down.

Look at either WAVES or Sound Soap from BIAS Inc. You probably have a Peak demo or lite version from BIAS already, which acts as a great host for Sound Soap or Sound Soap Pro. Very nice noise reduction tools, and should get rid of that cam noise in a heartbeat.
__________________
Douglas Spotted Eagle/Spot
Author, producer, composer
Certified Sony Vegas Trainer
http://www.vasst.com
Douglas Spotted Eagle is offline   Reply With Quote
Old August 8th, 2005, 11:08 AM   #3
Regular Crew
 
Join Date: May 2005
Location: Madison, WI
Posts: 170
Thanks for the tip, I'll have to check that out. Not sure if I can justify the cost for a little project like this but if I can use it in the future it might be worth it...
__________________
Jason J. Gullickson
Producer
the second society
http://2soc.net
Jason J. Gullickson is offline   Reply With Quote
Old August 8th, 2005, 11:17 AM   #4
Regular Crew
 
Join Date: Sep 2004
Location: Washington DC
Posts: 126
Maybe this deserves a new thread, but I have dialog that was recorded very low and also has a whirring tape transport noise in the background. When I raise the volume on the dialog, the whirring noise gets much more noticeable.

I realize there is only so much you can do with audio that is both too quiet and not clean, but my question is whether it is better to noise reduce before or after compressing and getting volume levels where you want them? Is noise reduction a better first step or last step? Or does it depend on the original file?

I have worked on it a few different ways, and maybe I have gotten the best I can out of it but it still isn't all that great. I was wondering how someone more expert would handle it (this is not something I can re-record).

By way of background, I am using Sound Forge and Sony NR.
__________________
Brian Kennedy
Brian Kennedy 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 10:10 AM.


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