wind/wave-reduction

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Robert J. H.
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Re: wind/wave-reduction

Post by Robert J. H. » Fri Jul 08, 2016 8:53 pm

lindstroem wrote:@Robert J. H., Do you mean copying the track so I have two then apply High pass filter on one and then isolate center on the other and then mix them? Do you have any recommendations on the settings for isolate center?
Well what I wanted was to have a crisp perfect recap of the voices and a slight lovely breeze in the background, but I would be glad even for 1% improvement which isn't to say that I will settle there ;)
"Remove Vocals" has a built-in high pass filter (look for "Low Cut" so you don't want to use a second one.
However, I would still isolate the center and apply a high pass afterwards because the built-in filter is very sharp and causes some resonances for this special audio track.
The main problem we are facing is that the three voices are not exactly in the middle and the left and right channel are overall not much related. In fact, they have a correlation of -6 percent!
One way to use isolation is to remove only the very extrema in both, hard left and right. A strength of zero does this.
The bubbling sound will be much less.
You could mix in some other sea/wind sound to mask it further.
Cheating? Yes, it is, but any effect (except amplification) is cheating.

kozikowski
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Re: wind/wave-reduction

Post by kozikowski » Sat Jul 09, 2016 12:02 am

You could also overlay ocean and beach sounds almost like this was intentional—in addition to the subtitles.

We still can't take a performance apart into individual performers, voices, instruments and other sounds. Once you jam everything together into one sound file, it's pretty much the end of the world.

The Big Kids occasionally get stuck with a bad shoot, and since there are mega-bucks on the line, they do ADR/looping. That's where the performers come in and watch a segment of the video or film again and again in a quiet studio and speak new, clean lines repeatedly until they line up with the original screen action. Then on to the next segment. The original damaged shoot generally isn't used except maybe for background effects.

You can schedule ADR with people who sound similar to the original people.

Koz

Robert J. H.
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Joined: Thu May 31, 2012 8:33 am
Operating System: Windows 10

Re: wind/wave-reduction

Post by Robert J. H. » Sat Jul 09, 2016 3:23 am

You could also try an on line noise reduction tool such as: http://audiodenoise.com/
Or let the audio run through Skype...
No tool is perfect and you will have to puzzle the best pieces together.
Also, some compression will be needed as well, the wind blasts reduce the volume, especially in the highs.
Robert

kozikowski
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Re: wind/wave-reduction

Post by kozikowski » Sat Jul 09, 2016 4:25 am

the wind blasts reduce the volume
If this is from a camcorder, then yes, there is Auto Gain Control running trying to make all the sound arriving come out to an enjoyable show. The instant the wind increases enough to be dominant, the AGC "throws away" the actual voices and tried to make the wind into the show. So even if we could rip the show apart into voices and sounds, the voices would take very serious hand-processing to make them even close to being enjoyable.

Without the AGC, you have a different problem. The wind pushes the voices into overload where without the wind, the voices would have been fine. Overload is non-recoverable.

Wind is not your friend.

Koz

lindstroem
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Re: wind/wave-reduction

Post by lindstroem » Sun Jul 10, 2016 2:49 pm

Thank you very much for your input.
Cleaning up audio is quite difficult, especially as it requires you to ask yourself "Better or worse" with 50 different combinations (keeps me thinking of Family Guy's "Yafar may need glasses: https://www.youtube.com/watch?v=FLXmyau8Tmc)

Based on your input I'm quite certain that you could do more, but I've tried playing around with the settings and am not able to get a good sound delving deeper in to isolate center etc. So I think I will settle with high pass filter (300mhz,48db) and then to keep the original soundtrack with -20db just to keep some of the waves, add subtitles and then do voice overs on the absolute crazy bad part when me and my wife does our speeches to eachother (about 2 min in Part I which I didnt send out before).

Part I Highpass filter - https://drive.google.com/open?id=0B1Oi7 ... m1LT3lFc2M
Part II Highpass filter - https://drive.google.com/open?id=0B1Oi7 ... XJZN25jMjg

That should make it quite watchable although with a fair amount of noice :)
If you have the time/inclination please have a look and review if you think any direct actions that I could take, otherwise I would like to thank you for your time :)

Robert J. H.
Posts: 3633
Joined: Thu May 31, 2012 8:33 am
Operating System: Windows 10

Re: wind/wave-reduction

Post by Robert J. H. » Sun Jul 10, 2016 3:25 pm

lindstroem wrote:Thank you very much for your input.
Cleaning up audio is quite difficult, especially as it requires you to ask yourself "Better or worse" with 50 different combinations (keeps me thinking of Family Guy's "Yafar may need glasses: https://www.youtube.com/watch?v=FLXmyau8Tmc)

Based on your input I'm quite certain that you could do more, but I've tried playing around with the settings and am not able to get a good sound delving deeper in to isolate center etc. So I think I will settle with high pass filter (300mhz,48db) and then to keep the original soundtrack with -20db just to keep some of the waves, add subtitles and then do voice overs on the absolute crazy bad part when me and my wife does our speeches to eachother (about 2 min in Part I which I didnt send out before).

Part I Highpass filter - https://drive.google.com/open?id=0B1Oi7 ... m1LT3lFc2M
Part II Highpass filter - https://drive.google.com/open?id=0B1Oi7 ... XJZN25jMjg

That should make it quite watchable although with a fair amount of noice :)
If you have the time/inclination please have a look and review if you think any direct actions that I could take, otherwise I would like to thank you for your time :)
As I said, I would mix the center-isolated version (Strenghth 0) with the original, this reduces the extreme clicks on the sides by at least 6 dB.
Also, I wouldn't go as high as 300 Hz, that sounds artificially to me as well.
Good luck.

lindstroem
Posts: 14
Joined: Thu Jul 07, 2016 5:11 pm
Operating System: Windows 10

Re: wind/wave-reduction

Post by lindstroem » Sun Jul 10, 2016 5:31 pm

Robert J. H. wrote:
lindstroem wrote:Thank you very much for your input.
Cleaning up audio is quite difficult, especially as it requires you to ask yourself "Better or worse" with 50 different combinations (keeps me thinking of Family Guy's "Yafar may need glasses: https://www.youtube.com/watch?v=FLXmyau8Tmc)

Based on your input I'm quite certain that you could do more, but I've tried playing around with the settings and am not able to get a good sound delving deeper in to isolate center etc. So I think I will settle with high pass filter (300mhz,48db) and then to keep the original soundtrack with -20db just to keep some of the waves, add subtitles and then do voice overs on the absolute crazy bad part when me and my wife does our speeches to eachother (about 2 min in Part I which I didnt send out before).

Part I Highpass filter - https://drive.google.com/open?id=0B1Oi7 ... m1LT3lFc2M
Part II Highpass filter - https://drive.google.com/open?id=0B1Oi7 ... XJZN25jMjg

That should make it quite watchable although with a fair amount of noice :)
If you have the time/inclination please have a look and review if you think any direct actions that I could take, otherwise I would like to thank you for your time :)
As I said, I would mix the center-isolated version (Strenghth 0) with the original, this reduces the extreme clicks on the sides by at least 6 dB.
Also, I wouldn't go as high as 300 Hz, that sounds artificially to me as well.
Good luck.
Thanks! I've blended the original with the high pass with the high pass + center-isolated and that cleared it up some :) thanks

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