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Danny32003927whoj
Inspiring
October 24, 2024
Answered

Denoise Not Available in LRC 14.0.1 Mac

  • October 24, 2024
  • 2 replies
  • 2447 views

I just upgraded to LRC 14.0.1, and the denoise feature no longer works. It says, "Denoise is not currently compatible with this photo format." The file is a full-size CR3 from a Canon R5c, which worked with denoise in LRC 13.x. 

 

I am on an 2021 M1 Max Macbook Pro, 64 GB RAM, 4 TB SSD, 10 cores. 

 

Adobe mentioned, "The October release of Lightroom Classic version (14.0) has disabled Apple Neural Engine support for AI Denoise on macOS." 

 

Does this mean denoise doesn't work for me or is this a bug? I've reset preferences, restarted my machine, and uninstalled/reinstalled LRC. Any help is appreciated! 

Correct answer Danny32003927whoj

It works in camera raw, just not Lightroom.


I just downgraded to 13.5.1 and then upgraded back to 14.0.1 and now it's working! I have no idea why that fixed it or what the underlying issue was, but it's working again. 

2 replies

Conrad_C
Community Expert
Conrad_CCommunity Expert
Community Expert
October 24, 2024

I don’t have a solution for why Denoise isn’t working on a file that worked in version 13, but I can explain the line about the Neural Engine.

 

Disabling Neural Engine support should not affect whether you can run Denoise. The Neural Engine only affects how fast Denoise runs.

 

Denoise performance largely depends on GPU performance. (The Max is relatively good, with all those GPU cores). When Denoise came out it practically only used the GPU. The Neural Engine should be well suited for accelerating AI operations such as Denoise, but macOS has had some bugs with the Neural Engine so it was not enabled at first. At one point Adobe decided those bugs were fixed enough that they enabled Neural Engine support in Denoise, and this made Denoise take somewhat less time. But the GPU still made the most difference in how fast Denoise runs.

 

It looks like Adobe found more bugs in macOS Neural Engine support, I think image quality was affected? Anyway, they decided to stop Neural Engine support for now, but the practical effect it should have on you is that Denoise might run a few seconds longer than when they did support it.

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Danny32003927whojAuthor
Inspiring
October 24, 2024

That's good to know! I don't mind if it's a little slower, it's just not working at all.

 

I can access denoise through camera raw, but not through LRC, so it's not a system requirements issue. I tried re-importing an image and that doesn't work. I don't know what else to do to try to make this work in Lightroom. 

JohanElzenga
Community Expert
JohanElzengaCommunity Expert
Community Expert
October 24, 2024

No, that neural engine thing has nothing to do with this. Denoise should still work, just a little slower. Try another image to see if it does.

 

-- Johan W. Elzenga
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Danny32003927whojAuthor
Inspiring
October 24, 2024

I've tried a different image and reimporting it to LRC. I still get this error. 

JohanElzenga
Community Expert
JohanElzengaCommunity Expert
Community Expert
October 24, 2024

Then the problem must be with these files somehow. I just tried denoising a Sony A7R V raw file in Lightroom Classic 14.0.1. on my MBP with M1 Max, and that went without any problems. Is this some kind of special raw version perhaps?

 

-- Johan W. Elzenga
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