Subject:Help with "noise reduction", etc. check this out-=->
Posted by: Mystical_Ice
Date:4/21/2005 8:26:47 AM
first, listen to this: http://www.3dap.com/hlp/hosted/stealth/hostedpictures/soundcleaning.mp3 i've got literally hours of conversations like this, and i really need to be able to hear what's being said... i've tried cool edit pro, but it's a hard program... so i'm wondering: how would you remove this kind of "background" or "room" noise. this conversation was recorded in a restaurant, and i need to know what the dude's saying, cause i can't remember. |
Subject:RE: Help with "noise reduction", etc. check this out-=->
Reply by: Chienworks
Date:4/21/2005 8:30:25 AM
I think the background noise is the least of your problems. You've got so much distortion in that recording that it may be impossible to recover it. Perhaps Clipped Peak Restoration might help, but it may be too far gone for that. If you want to try it, i would do that first before Noise Reduction. The noise is minor compared to the distortion. |
Subject:RE: Help with "noise reduction", etc. check this out-=->
Reply by: Mystical_Ice
Date:4/21/2005 12:12:42 PM
OK, but at least with the background/room noise gone, it would be a lot easier to distinguish what was being said, right? So exactly how would i go about doing it? |
Subject:RE: Help with "noise reduction", etc. check this out-=->
Reply by: Chienworks
Date:4/21/2005 1:51:51 PM
It might help some, but my impression is that the noise is rather minimal and removing it will make very little difference. Do you have the SONY Noise Reduction 2.0 module? If so, here's some very fast sketchy instructions: - select a short sample of the recording where there is only background noise and no speaking - start up Noise Reduction under the FX Favorites menu - check the Capture noiseprint box - click Preview to listen to the selection - click Selection and change the Selection to All Sample Data - click Preview again to listen to the recording - adjust the Reduce noise by slider as needed, moving to the right removes more noise, moving to the left preserves more of the original recording - when you've got something that sounds better, click OK There are lots of other options you can play around with but this should get you started. Lots of people recommend that you remove gently rather than aggressively and repeat it several times. Please understand that Noise Reduction works best on constant repetiative noise such as hums, fans, and air conditioners. It doesn't work well (or at all) on sporadic noise such as bangs, clanks, or wind. And, in your particular sample, even if all the noise could be removed, i think the distortion is so bad that you still won't be able to hear the voices well. |