#1  
05-22-2014, 03:09 PM
knumag knumag is offline
Free Member
 
Join Date: Feb 2014
Posts: 72
Thanked 1 Time in 1 Post
https://docs.google.com/uc?id=0B_UCV...xport=download

What is the reason for this? just a cheap camera? Any filters in VD, or something, i can use to clean it up a bit?

Thanks in advance
Reply With Quote
Someday, 12:01 PM
admin's Avatar
Ads / Sponsors
 
Join Date: ∞
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #2  
05-22-2014, 07:41 PM
Winsordawson Winsordawson is offline
Free Member
 
Join Date: Sep 2010
Location: Behind you
Posts: 473
Thanked 29 Times in 25 Posts
Can't view doc
Reply With Quote
  #3  
05-22-2014, 08:45 PM
kpmedia's Avatar
kpmedia kpmedia is offline
Site Staff | Web Hosting, Photo
 
Join Date: Feb 2004
Posts: 4,311
Thanked 374 Times in 341 Posts
Do you mean the audio noise?

- Did my advice help you? Then become a Premium Member and support this site.
- Please Like Us on Facebook | Follow Us on Twitter

- Need a good web host? Ask me for help! Get the shared, VPS, semi-dedicated, cloud, or reseller you need.
Reply With Quote
  #4  
05-22-2014, 10:49 PM
Winsordawson Winsordawson is offline
Free Member
 
Join Date: Sep 2010
Location: Behind you
Posts: 473
Thanked 29 Times in 25 Posts
If you're referring to the buzzing, I usually try a 60 or 50hz reduction, or a notch filter, but I don't know if VD has these. If VD allows noise reduction through sampling like Audacity, you can sample some video with only buzzing and selectively remove it. Dv camera tapes tend to make some recording noise, which can usually be reduced by holding the camera or using an external mic.
Reply With Quote
  #5  
05-23-2014, 01:20 AM
knumag knumag is offline
Free Member
 
Join Date: Feb 2014
Posts: 72
Thanked 1 Time in 1 Post
Isn't the background sound, almost like the camera is constantly focusing, called motor noise? I can try audacity, but only handled it with Md/Cd captures. Have to demux first i guess.
Reply With Quote
  #6  
05-23-2014, 08:07 AM
lordsmurf's Avatar
lordsmurf lordsmurf is offline
Site Staff | Video
 
Join Date: Dec 2002
Posts: 13,355
Thanked 2,431 Times in 2,066 Posts
Okay, so it *is* the audio noise.

The cheap consumer camera microphone is too close to the mechanics in the camera, and thus picks it up. Thankfully, in the digital era, something like this is generally simple to fix. The key is finding a quiet spot on the tape, then exploiting the "silent noise" as the basis for correcting everything else.

I would capture, demux the audio, and bring the audio into Sound Forge. Using Sound Forge, I can quickly locate a "silent" segment by sight (using the visual representation of wave forms), copy that piece into a new "noise print" file, and close. Then use Audacity for the main file, using the noise print. It's really quite easy -- (1) IF you have the tools, and (2) IF you have the experience at editing audio. It's too easy to muffle or garble audio, so need to be careful. You want to actually RESTORE the audio, not simply trade or error for another. And unlike video, with audio 99% removal of error is possible!

Give me a sample clip, probably from the end/beginning or a "fade to black" point on the tape. Also give me a "busy" clip (the one above, from your first post, is actually fine). Then I'll run the filters real quick, and tell you what I did. That'll give you an idea of what to do.

- Did my advice help you? Then become a Premium Member and support this site.
- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
Reply With Quote
  #7  
05-23-2014, 10:10 AM
NJRoadfan NJRoadfan is offline
Premium Member
 
Join Date: Sep 2010
Posts: 1,149
Thanked 355 Times in 291 Posts
The transport noise recorded is typical of tape based camcorders. It could be worse though, my D8 camcorder sounds like an angry pack of bees when recording and playing back D8 tapes. If you are shooting new content with your camcorder, buy an external mic and mount it on a shoe. Usually it will be far enough away to not pick up the transport noise.

Quote:
Originally Posted by lordsmurf View Post
I would capture, demux the audio, and bring the audio into Sound Forge. Using Sound Forge, I can quickly locate a "silent" segment by sight (using the visual representation of wave forms), copy that piece into a new "noise print" file, and close. Then use Audacity for the main file, using the noise print. It's really quite easy -- (1) IF you have the tools, and (2) IF you have the experience at editing audio. It's too easy to muffle or garble audio, so need to be careful. You want to actually RESTORE the audio, not simply trade or error for another. And unlike video, with audio 99% removal of error is possible!
Tweaking continuous noise filters is likely the most complex of restoration work. The better filters allow you to click and button and hear just the audio the filter is removing (makes fine tuning easier). DCArt has this option, I don't know if Audacity has it.

Last edited by NJRoadfan; 05-23-2014 at 10:20 AM.
Reply With Quote
  #8  
05-23-2014, 01:32 PM
lordsmurf's Avatar
lordsmurf lordsmurf is offline
Site Staff | Video
 
Join Date: Dec 2002
Posts: 13,355
Thanked 2,431 Times in 2,066 Posts
I almost forgot ... every scene has different audio needs. So if the tape is full of 5 minute recordings, you'll be processing the audio for quite a while. It really depends on how much noise needs to be removed, and the location of the noise print.

Audio can be very tedious.

- Did my advice help you? Then become a Premium Member and support this site.
- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
Reply With Quote
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Best camera for Video8 tape playback? david151 Capture, Record, Transfer 19 08-13-2019 11:33 AM
Is a MiniDV camera with 3CCD better than one without? DeeSeven Capture, Record, Transfer 7 05-13-2014 02:49 AM
Transfer MiniDV tape to Mac or PC? Eagleaye Capture, Record, Transfer 11 07-17-2013 11:35 PM
Help with External TBC, Noise Reduction, and dropout compensator to fix VHS tape via Email or PM Restore, Filter, Improve Quality 3 06-29-2010 09:45 PM

Thread Tools



 
All times are GMT -5. The time now is 09:26 AM