Lightroom 4.4 jpeg export VERY noisy...HELP!

Hi all,
I have Googled and quite aware of the noisy jpeg output for v5 onwards.
But I'm still using 4.4 and all I found on Google is threads for v5.
Has anyone experienced this noisy jpeg export issue?
Here's a screengrab comparing the two.

If you're seeing a reduction of noise in the Export when you increase the Lum NR slider, then it's not a bug preventing the Lum NR from being applied.
Besides increasing the noise-reduction and not sharpening the remaining noise during Export, the other thing to do is use sharpen masking to prevent non-edges from being sharpened. You use the Mask slider in the sharpen section to accomplish this.
If you hold down the Alt key while moving the Mask slider you can see what areas will have sharpening applied. Make sure that it is only the edges, not the areas between where noise is the only detail or texture. The mask slider will probably be close to 100 for optimal results with a noisy image.
You should expect there to be a little grain left in the image.

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https://www.carsonmedia.com/projects/softballphotos/phototests/photocomparison.h tml
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A sample is much easy to explain:
You can download the full resolution jpeg here: http://demo.ovh.com/download/c7aa49ae94a5ec202eca7f8ffdad0c8d/sample.jpg
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Good Evening,
I'm facing an issue with Lightroom 5.6. When I develop a photo and I export it to jpeg the result is far from the original Raw.
There is a loss of quality, particularly in term of noise reduction and sharpening. It seems that Lightroom doesn't take into consideration the changes made in these parameter.
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Thank you both for your replies.
I'm sorry I think I don't understand what you are trying to explain to me.
When I work in Develop I make my changes and from time to time I switch to fullscreen to better check the results of my changes because the loupe view is too small (I use a laptop).
Sometimes it happens that if I go to Library and I watch the same picture fullscreen it is full of noise and/or pixels. It seems it happens after I work for more than one hour or so, in fact when I start working on Lightroom there are not differences in watching pictures fullscreen in Library or Develop modules.
Regarding the Jpeg Export issue, the “bad result” is visible in Lightroom or any photo viewer.
I have several jpeg pictures where the noise/sharpening issue is more visible because I used very high noise reduction values, but they are family pictures with children and I prefer not to put them in a public forum
Please follow the links below to see two samples related to difference in sharpening
https://www.dropbox.com/s/wc50noae6f8na0j/Compare%20Raw%20vs%20Jpeg.jpg
https://www.dropbox.com/s/onvvidl0hyligox/Raw%20vs%20Jpeg.jpg
The “select” is the Raw and the “candidate” is the Jpeg.
I guess it better to download them to appreciate the difference in sharpening.
Details:
Windows 8.1
Nikon d7000
First image:
ISO 100
Sharpening 150, Noise Reduction untouched
Export file settings: Jpeg, quality 80, Color sRGB, Limit file size unchecked.
Image sizing: Resize to fit unchecked
Output sharpening unchecked
Second image:
ISO 1600
Sharpening 60, Noise Reduction Luminance 41
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Image sizing: Resize to fit unchecked
Output sharpening unchecked

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Hey guys:
Long time photoshop and lightroom user (long time user of all things Adobe). First post here in the forums. I did a search for my question but I think it was too specific, so it returned zero results.
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DrMilesBennell wrote:
Can anyone shed some light as to why Lightroom exports JPEGs that are roughly 2-4 times the size of Photoshop's JPEGs? My initial thoughts are that the 100 quality setting in Lightroom is more like Photoshop's quality 12 (that always makes me think of Spinal Tap - "Why don't you just make ten louder and make ten be the top number and make that a little louder?" "These go to eleven.") Ideally, exporting out of Lightroom would be much easier for my workflow.
You are correct: LR Quality 100 = PS Quality 12
Despite LR having 101 Quality settings (0 to 100) it actually only has 12 Quality settings the same as PS 'Baseline Standard':
JPEG Quality Setting Comparison
PS
LR
LR Range
Typical Reduction
0
0
0-7%
11%
1
10
8-15%
23%
2
20
16-23%
14%
3
30
24-30%
14%
4
35
31-38%
16%
5
40
39-46%
24%
6
50
47-53%
4%
7
55
54-61%
27%
8
65
62-69%
25%
9
70
70-76%
31%
10
80
77-84%
35%
11
90
85-92%
41%
12
100
93-100%
I keep a small copy of the above table taped to my monitor. I chose the numbers under the 'LR' column for the 12 steps (not AA's) to make it easier to remember. In actuality ANY number in the LR Range column will produce the same results for each step.
Under the 'Typical Reduction' column notice the small amount of reduction for PS 6 (LR 47-53%) Quality setting. If interested why AND why you probably shouldn't use PS 7 (LR 54-61%) Quality setting see this post:
http://forums.adobe.com/message/5641903#5641903

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Mac, Illustrator CS4, Applescript
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Lightroom 4.4 jpeg export VERY noisy...HELP!

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