Noise reduction problem

Hey,
I am working with Soundtrack Pro 1.1. I am trying to eliminate or reduce backgrounds noise in a scene with four teenaged girls sitting around in a circle. The unwanted noise is water running via a fish tank. Can be quite loud (amazing what can be heard). When I try to raise the 'noise threshold' I find once it is raised too far it starts to effect dialogue and it gives it an echoing quality. I don't like this. I can only seem to minimize this or prevent it when it is raised to a certain point (unwanted noise still remains somewhat).
Any ideas or workarounds? It sounds like the program is mistaking dialogue for background noise.
Chris

Hi Chris,
If you encounter this type of problem often, you might consider purchasing Z-Noise, a plug-in from Waves. This is especially true if you can allow Z-Noise to "learn" the offensive noise without the desired program material. This enables Z-Noise to digitally subtract the offensive noise from the program material. The more "sporadic" the noise is, the less effective Z-Noise will be in reducing it, but it still will help substantially. The Z-noise plug-in is pricey (a few hundred bucks), but it is capable of minor miracles on certain types of noise. Waves does have a demo/download policy so that you can try it out for a period of time for free. I hope this information is a help.
Best Regards,
Bob Z.

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Lightroom 3.6 DNG and Noise Reduction Problem

Hello,
I did a search and couldn't find this issue listed. I convert my Nikon D90 raw files to DNG. Never seem to have a problem with that except that the display(s) seldom shows the results of applying Noise Reduction (Color or Luminance). If my display is at Fit or Fill I don't see the results of what I am doing. If I zoom in to 1:1 or more, then I can see the results. All works fine if I am using a jpg file, it is just the DNG files that do this. If I want to see the entire picture with Noise Reduction applied I have to switch to the Library Module. Then when I go back to the Develop module the main display goes back to not showing the Noise Reduction, but the secondary display is ok until I apply another effect then boom, back to Noise Reduction not displaying. All of the other changes I make work just fine. It is just the Noise Reduction that causes the problem. This is really a killer when I am working on photos. This problem existsed before 3.6. Does anyone else have this problem? FYI - When I switch to the Library Module it takes a few seconds before the secondary display shows the photo with the Noise Reduction applied.
I have a quad core 2.4ghz with 8gig of ram and Windows 7 Pro 64bit OS. Plenty of CPU and memory available.
Thanks,
Harold

LR is designed this way to improve speed. I think it varies, somewhat, with how high the ISO is where higher ISOs show NR more.
I find this annoying, too, and which there was a setting to allow LR to compute the NR at lower resolutions if one chooses, instead of Adobe choosing things for us.

Noise reduction problems LR3.4

I have some problems with the noise reduction.
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Hi
You can't really do effective and selective (that's what you want) audio editing with FCP filters. But if you HAVE to, you can use the following filters (not sure if they are all in version 4.5):
Hum remover
compressor
equalizer (3band)
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Microfon problems s400 with noise reduction

Hello people,
have a problem with the microfon sound.
This recording is either noisy (without HD driver and with HD drivers without noise reduction) or it is distorted (with HD drivers and noise reduction).
Drivers I've tried from the Lenovo page and also from Realtek already.
here are a few tests
Noise: https://dl.dropbox.com/u/1182020/test% 20HD% 20with% 20the%% 20treiber 20nachhallred.wma
distortion: https://dl.dropbox.com/u/1182020/test% 20with% 20HD% 20treiber% 20with% 20rauschunterdr% C3% BCckung.wma
in the device manager for microphone stands for the version: 6.2.9200.16384 Microsoft.
Use Windows 8 Pro which I installed by myself.
Would be grateful for suggestions, I can not skype otherwise.
greeting

Dark areas have less bits to encode their values so a single bit of noise is a higher proportion of the total value.
For the basis of the default processing, to match the human eye’s response to dark and light, darker areas are brightened more than bright areas, using a non-linear gamma curve. This magnifies the noise in darker areas.
If you boost the brightness of dark areas using Shadows or Clarity, you are making that noise even more visible. Think of brightening as digitally increasing the ISO.
Adobe’s noise-reduction is calibrated to the original photo’s ISO setting, not how much you have digitally increased the ISO by brightening it, so if you have magnified the noise by extreme processing, you may be beyond what maxing out the NR sliders are calibrated to remove.
Exporting sharpening will sharpen any remaining noise.
Are you using the Mask slider in sharpen to keep from sharpening the noise grain in the Detail section? Use the Alt key while moving the mask slider to determine the optimal Mask level for a particular photo, where you can’t to have the edges indicated but not the wide areas of little detail.
It’s hard to guess what you’re seeing without seeing a screenshot.

Why does PhotoShop CC 2014 crash my Windows 7 Professional 64-bit PC every time I try to use Sharpen/Blur Reduction and also Noise Reduction ??!!!???

Hi Adobe
You a have a really wonderful PhotoShop CC product. It's really great, and I know new versions such as 2014 have their teething problems.
But I am getting really sick of my Windows 7 Professional 64-bit PC being crashed whenever I try to use PhotoShop CC 2014 Sharpen / Blur Reduction and also Noise Reduction.
This happens both with JPG's and PSD's.
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Chris Tattersall

Chris,
It doesn't crash for everyone. A person could be forgiven for saying, in return, "Please sort out your **** system problems".
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What video card do you have?
What display driver version are you running?
If you're unsure how to tell these things, go into Photoshop, choose Help - System Info, copy the data, and post it here.
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How do I permanantly apply audio noise reduction in FCP X

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I am fixing audio on a 1 hour program. Really need this to work. Anyone else having the same problem, or found a solution? Or know what I might be doing wrong?
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Paul Kakert wrote:
The Background Noise Reduction in FCP X, applied at 100%, does a truly amazing job.
Does this mean you actually like the audio to sound as though it was recorded under water? I guess it depends on the amount of noise that requires removing, but I've never been able to tolerate more than about 40% before the audio gets horribly distorted.
I really don't share your experience of FCP X removing background noise 'on the fly' (sorry).
Andy

How do PS CS3 Noise Reduction Filters compare with dedicated third-party plug-ins?

Am I missing something by not installing a dedicated Noise Reduction application into my PS CS3? Can Neat Image, Noise Ninja, Noiseware Pro, etc. do something that the PS CS3 Noise Filters can't do? Do these third-party aplications do it better?
Since I like flashless photography, and I generally carry with me small-sensor compacts when I travel, I'm frequently confronted with the problem of digital noise. I've always wondered how the third-party noise reduction applications perform in comparison with the Photoshop Noise Filters. I hope someone in this Forum has been able to acquire direct experience on this topic and will be kind enough to share this experience with us.
Kindest Regards,
Conrad

Conrad,
ACR 4.3 has better NR (noise reduction) than previous versions and can handle NR in most normal situations. However, available light photography with a small pixel sensor may require more NR and the specialized plugins such as Noise Ninja, NeatImage, and NoiseWare Pro can do a better job. I have all three and they do an excellent job, but I currently use NoiseWare most of the time.
Here is a demonstration of NoiseWare vs ACR NR, using 100% crops of an image taken with the Nikon D200, 1/320 sec at f/2.8. The image is reasonably sharp at normal viewing conditions, but has quite a lot of luminance noise. It was rendered with ACR and the settings were exposure +0.85, brightness +60. One thing you learn early in this type of shooting is to expose to the right to reduce noise, but this may conflict with stopping action and reducing camera shake. More exposure would have helped this image, and one should try to avoid exposures requiring this amount of positive exposure adjustment.
The results are shown below, followed by some discussion. Other comments are welcome. Color noise is not prominent in this image and I left color NR at its default.
ACR, No sharpening, no NR
ACR, Luminance NR 53, no sharpening
ACR, No NR, No sharpening, NoiseWare default, no sharpening
Noise reduction and sharpening are antagonistic processes. It is important that NR is applied before sharpening--you don't want to sharpen noise. Following NR there is an inevitable loss of detail, and some sharpening is necessary to restore the detail, but this also brings back the noise. One can use masks and blend if sliders in Photoshop in both NR and sharpening to mitigate some of these effects, and Bruce Fraser discusses the details in his excellent book on sharpening.
If you use an add on such as NoiseWare, you should turn off luminance sharpening in ACR. In doing so, you lose all those nifty sharpening features that have recently been added to ACR. I leave color NR at the default. It has a minimal effect on detail.
In adjusting the NR in ACR at 100% viewing, I estimated that a luminance setting of +53 was optimal. Beyond that, blotchy artifacts appear in the image.
For NoiseWarePro, I used the default settings with no sharpening. The NR effect is dramatic, but detail is lost and some sharpening is needed. This could be applied in NoiseWare or in Photoshop, perhaps with a plugin such as PhotoKit Sharpener. Personally, I have found that PK does not work well with this type of image because it bring back noise and produces artifacts.
In all of these examples, sharpening is needed following the NR. One could try to use surface masks to keep sharpening in Photoshop with the unsharp mask away from the edges. However, I find it is difficult to get a good surface mask, and I don't take the trouble.
For now, I use the sharpening built into NoiseWare. I don't know how it works internally, but it does have a slider for detail protection, and you can play with this to get the best result. It would be best to have the robust NR of the add ons built into ACR much like NoiseNinja is built into Bibble Pro. However, this is an ACR forum and I would expect that ACR is the preferred raw converter of those who frequent this forum.
After expending this much effort on the post, I hope to get some helpful feedback.

Missing noise reduction feature in iMac 2012, Do you all know if that feature was available in previous iMacs??

I have been having some issues in my iMac 2012, with the noise reduction feature. I have a MBP retina display that in system preferences has the noise reduction feature. However, in the new iMac 2012, I don't see that feature. Plus, I have been having issues with facetime, people that I call are telling me that they hear feedback whenever I talk to them. Does any of you know if the new iMac is supposed to have the noise reduction feature?

I was trying to find the "use ambient noise reduction" option in my new iMac, but in the new iMac I don't have that option. I was wondering if in previous iMacs versions had the "use ambient noise reduction" option available because I have an issue with facetime, people that I am calling are telling me that they hear feedback or static sound and they can't hear me well. I believe that with the "noise reduction" option, that problem will be solved. However, in my iMac, I don't have that option only in my MacBook pro. The reason that I am asking if in previous iMacs versions had that option is because I believe that there might be a bug that Apple needs to fix in order to have that option available in iMac.

Audition CS6 crashes while running Adaptive Noise Reduction

Hi everyone!
So that is the problem, I edit an audio file, run Adaptive Noise Reduction filter, and somewhere during the processing the computer just crashes. Sometimes it happens and sometimes not. I saw that computer showes up an alert message just before the crash but I wasn't fast enough to read what was written there. Recently I did a clean system install and have just some programs installed. Before system reinstall the problem was not there, although the program (audition) is exactly the same. What to do?

Srivas 108 wrote:
The system is Win 7 64 Home Edition. It was working ok before. Maybe I should install all the updated? I hate to do that, my experience is that it slows down the system in the long run, but looks like I should do that.
I run the pro version, but it's basically the same. I've got all the updates installed, but I haven't noticed it slow down at all. Mind you, this is a fast system anyway. But if it's crashing, then installing updates won't fix that; you need a fresh reinstall on an absolutely clean disc first. Okay, that's a pain - but look on the bright side; you aren't running Windows 8. Recently I wasted nearly a day of my life on that, and I'll never get it back. The basic rule about M$ OS's hasn't changed - it's only the odd-numbered ones that are worth bothering with, as a rule. And none of them are worth installing until the first service pack is issued.

LR4 Feature request: Add local noise reduction

Hello,
I wish to apply noise reduction localy. On the backgroud apply a lot of and in forgroud (where the object/personn ist) a little.
See this example.
The current local noise reduction ist NOT the same as the one in the detail panel. It is a lof f less efficient.
Thanks

martin-s wrote:
...I had no idea there was a cut-off point...
The only people who know about it are the one's who hang out on this forum .
martin-s wrote:
I use negative sharpness combined with negative clarity and/or contrast for blur effects. It's not unusual that I stack multiple brushes when -100 isn't enough
Thanks for the tip. My problem with blurring in Lr is that the blurred region ends up "too clean" (the rest of the photo has at least a bit of noise in it). I have dealt with it in the past by applying grain to the blurred region using an external editor - but that takes a lot of the fun out of doing the blur in Lightroom.
Rob

Are there any other enhancements in noise reduction tools in CS6

Are there any other enhancements in the noise reduction tools besides the improvement mentioned of the spot healing brush. Are there improvements on the click and pop removal tool and the noise reduction in the spectral editing view. Quite anxious to know...

Paul:
Welcome to the Apple Discussions. There is a hidden feature for changing the Redeye and Retouch tool size:
How to Change the Size of the Retouch and Red-Eye Removal Tool
Type Caps lockControl9
Undo caps lock
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NOTE: Using the "{" "}" keys will will change the value next to the circle and that represents the degree of change or intensity that the tool imparts on each pass.
Also check out the tip at the end of my signature for backing up the library database file on a frequent basis.
Do you Twango?
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When editing in Photoshop CS6 I lose the noise reduction applied in Lightroom 4

When I apply the noise reduction in LR4 & 4.1 it's awesome until I send it to photoshop CS6 for editing...there the noise returns somewhat with larger spots highlighted (have to remove with spot healing)... looks even worse when I bring it back to Lightroom as a tiff. I have used Lightroom (including beta) from the start and this is the first major problem I've incured. I shoot a lot of concerts & festivals....this really makes for a lot more work and time spent....I love LR4...please fix.

It should't happen. Can you post an example?

RAW conversion bug with Noise Reduction

Hello,
I have found a serious bug in the RAW conversion when noise reduction is applied. When converting from two types of Canon RAW files (a CRW from a Powershot G6 and a CR2 from a 20d) I found that if you apply Noise Reduction to a RAW file on very low settings (the default setting in the NR function will produce this reliably) single-pixel lines appear at regular intervals throughout the image. Here is an example:
You can see several lines in this image:
http://farm1.static.flickr.com/140/3821480263171e76604b.jpg
A 100% detail of which is here:
http://farm1.static.flickr.com/179/382148021af6586d27eo.jpg
Has anyone else had this problem? Can someone from the Aperture dev team fix this?
-Steve G

Well I find this filter is quite good in 'masking' block artifact that codec like xvid, or other low compression codec have. I only apply it if I find the block artifact is too much and I find this filter is less offending to my eyes than the block artifact.
In manual it said that if you have noisy video and want to lower the size then you can use this filter. It also blur the video a bit. But I suspect it is more than blur as I try gaussian blur in time line and the result is not as good. You can see the result as well. There is the tab between source and target and you can compare the result by togling between source and target tab.
BTW, anyone with 1 core, dual, or quad core, can you tried to encode with it? Just cancel it after few minutes as I want to see what is your processor utilization with this filter on. Also you can see how long does it take to process this video from the 'estimation time left'.

In-camera noise reduction

This question is directed to the technically knowledgeable out there and has to do with in-camera noise reduction settings. Although I'm shooting with a 1D4, I would guess the same would apply to all models. In a nutshell, is in-camera noise reduction (assuming it's enabled) applied to RAW files or just to JPEGs? If it's applied to RAW files (which is all I shoot), have any of you shot RAW with noise reduction disabled, and if so, how were the results? I tried to do a search here on this topic but was unable to find any information. Thanks.

hsbn wrote:
No, with all due respects, it is Long Exposure NR. Why would it make it worst with High ISO if it is "High ISO Noise Reduction".
6D Manual page: 128 - 129
5D Mark III manual page 144-145
"Images taken at ISO 1600 or higher may look grainier with the [Enable] setting than with the [Disable] and [Auto] setting"
With Auto setting, camera will not do LENR if the ISO is higher than 1600.
I've tested this and it's give many kind of artifact with high ISO from time to time. Others it just gives more noise.
Hi,
- Great to know, thanks! It's very surprising indeed.
LENR is supposed to remove hot pixels and noise due to long exposure. It's (sadly) surprising the in-cameras LENR may be worse than in post...
We'll take a review about it , since shooting long exposure at higher than ISO 1600 is not uncommon for astro photography.
I think 5D Mark 2 didn't have this "problem". Will check that too.
- The manual tells that in-camera High ISO NR applied is lower at high ISO than the NR that can be applied in post, not "worse", sorry, my mistake.
Thanks once again.
EDIT: The User manual of 5D Mark 2 doesn't tell anything about this matter. The manual of 7D does, as well as 6D and 5D3 as you mentioned.
Since I used to work with 5D2 I didn't realize the 5D3 could be different. Or at least the manual of 5D2 doesn't say the final result of LENR at 1600 or higher could be worse. Good thing to keep in mind.
Sitll doesn't understand why the result "may" be worse, the 5D3 has enormous computing potential with the Digic 5+
This seems to only affect if LENR is set to "ON" / "Enabled", not to "Auto". Very likely a more agressive NR is applied in such case.
We'll carry some test indeed.
EDIT 2:
In just brief tests with the 5D Mark 3 we found some inconsistency on the results between setting Long Exposure NR to "OFF", "Auto" & "On".
We set High ISO NR, Peripheral Illumination Correction and Chromatic Aberrations to OFF, to see only the effect of LENR in JPG (not RAW yet).
This camera (5D3) applies High ISO NR even when you set it to OFF (very noticeable in video mode).
At ISO 6400 we didn't see a hot /stuck pixel (even when LENR set to "OFF") that appears at ISO 3200 when setting LENR to OFF or Auto. Of course "ON" deletes all hot /stuck pixels, but also increaed grain.
We all already know that the more the sensor heats up (shooting and shooting long exposure stills - or using Live View for stills or video), the more noise we'll get in the pictures (and video).
So far we couldn't get a "rule". Sometimes the "Auto" works better than "ON", it seems it depends on the selected ISO value and how hot is the sensor too.
I pesonally don't understand WHY the LENR delivers more grainy images when set to "ON", if the NR is more agressive the grain should be finer than in "OFF" or "Auto", so it doesn't make sense...
We'll test the 5D Mark 2 to compare with 5D3 in this regard
HD Cam Team
Group of photographers and filmmakers using Canon cameras for serious purposes.
www.hdcamteam.com | www.twitter.com/HDCamTeam | www.facebook.com/HDCamTeam

Noise/grainy problems with images exported into photoshop cc from lightroom after photoshop & lightroom updates

I can't figure it out. After updating photoshop from the c6 version to the newer cc, and after also an update to lightroom through my creative cloud app, all photos exported now from lightroom into photoshop are extremely noisy and poor quality. I have adjusting settings I thought to back where I had them, but the images still don't look right. Can you help me? Slammed with photos to edit for paid gigs! Panicking. These are raw files.

My interpretation of what the OP’s situation, that they are adjusting noise-reduction and sharpening to their liking in LR, the using Edit In PS (not Exporting despite using that word) into PS and what they see in PS is much nosier than what they saw in LR and are wondering why things look different between LR and PS.
My guess as to the problem is that they’re adjusting LR-Detail settings (Sharpness and NR) using Fit zoom instead of 1:1 zoom and then viewing the image in PS, perhaps at 1:1 zoom or even at Fit-to-Window zoom in PS, and that LR’s resampling and PS’s resampling of the image for fitting to the screen are a bit different and PS’s looks rougher.
Unless the OP is comparing LR and PS at 1:1 or 100% zoom, differences are to be expected.

Noise reduction problem

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