If you have used Audition's spectral editing facility, as I have and do, I know of only one other other app offering anything like that degree of "surgical precision" for a range of editing tasks. You mention Spectralayers, which obviously is a Magix product; I've never used it but assume it offers something similar in terms of the ability to "paint on/erase" areas of the audio spectrum in order to effect a variety of changes.
The other app I am aware of and have a working knowledge of is iZotope "RX7 Audio Editor", but it is much more expensive than even Audition!
iZotope RX 7 Elements comes with SF Audio Cleaning Lab. The built-in version of Spectral Cleaning (SF Audio Cleaning Lab 1) has always been good, but does not include all of the tools of the same tool that comes with Samplitude Pro X Suite in the Cleaning & Restoration suite.
If someone has used the Audition Spectral Editing tools then those in SFACL are rather less comprehensive and, to me at least, much less intuitive! But yes, I should have included it in my post!!! 😭😭
As I said, iZotope RX 7 Elements comes with SF Audio Cleaning Lab. Looking at the image on the Magix web site, I can't tell if the spectral cleaning actually comes with it. Looking at the comparison table on the iZotope site, they show Spectrogram, but Spectral Repair doesn't come with it, so I don't know how useful that would be.
However, the SF ACL spectrogram allows you to do cleaning on it as shown below (from AML Premium but same in SFACL1):
This is all I have ever needed.
Here is the version in Samplitude Pro X Suite, showing more advanced tools:
About Spectralayers, Magix sold it off to Steinberg with version 5. Magix is currently offering Samplitude Pro X5 Suite with: Steinberg SpectraLayers Pro 6 + 7. SpectraLayers Pro 6 is the most advanced audio spectrum editor on the market and transforms sound into a unique visual world of multidimensional data. Its visual concept and toolkit enable sounds to be extracted, optimized or rearranged in ways previously thought unimaginable. Thanks to ARA2, Steinberg SpectraLayers Pro is now more seamlessly integrated into Samplitude Pro X5. All customers that purchase a copy of Samplitude Pro X5 Suite will be able to download the forthcoming update to Steinberg SpectraLayers Pro 7 for free."
I almost upgraded to SFACL2 just to get the iZotope RX 7 Elements. Looking at the advert, it looks like spectral cleaning can be done, but the iZotope site implies otherwise. I still have a bad taste in my mouth about SFACL1:
Recording - they forgot to include the Mono button. Issue was raised but never corrected; corrected in SFACL2;
SFACL does not show up with a right-click for audio cleaning in MEP/VPX; but the previous version, AML, does show up. I wouldn't want to find that SFACL2 does not show up.
SFACL2 does show up as the "Audio Editor" in VPX12, though needing the "mixdown" routine to be able to use it, as we have previously discussed. It does NOT show up under "Audio Cleaning", only the built-in facilities.
I'm pretty sure iZotope RX7 Elements does NOT include the Spectral Repair/Editing that the full version allows. I've actually got the Advanced version of the full RX7 so didn't actually install the "Elements" when i installed SFACL2.