I agree completely with what you said about the lack of training material on Spectralayers - and on Steinberg stuff in general. They really lack in this department compared to other companies.
Absolutely it can, and much more. But with a few caveats:
DeClick, Voice Declick and Unmix Multiple Voices modules are essentially broken, and have been since at least v9.
I find de DeReverb pretty weak, so I don’t use it.
Some FFT sizes still cause the GUI to get laggy when enough spectrum is visible on the X-axis.
ARA can be finnicky, but you can learn how to work with it.
There are bugs present, as people have reported here many times (myself included).
Now mind you, I only work with it inside Nuendo in ARA2 mode.
After years of using RX advanced in music, when I moved to Post I just couldn’t handle the hassle of working with it, for two reasons: RX Connect is terrible; and even if I used all of RX’s editor power, there was just so much stuff that I couldn’t clean up in an acceptable time frame. So I looked into Spectralayers, learned it, and never went back.
For me it works better than RX for mainly two reasons: one is the automated separation of audio in layers (mainly Unmix Noisy Speech) and the ability to work those layers in parallel. The other is the ability do adjust the FFT size with a key command. This makes its ability to restore audio (at least in a post-production environment) simply unmatched IMO.
For example, using RX there is no easy way to separate the voice from the background, for starters. It would be an extremely time-consuming, herculean endeavor, and with poor results. So while many modules there work very well, you are stuck with the “whole” audio the whole time. Any unwanted sounds that overlaps with what you want easily become an issue, cause there is no way you can work around everything manually.
Spectral and/or dynamic de-noisers have severe limitations, cause artifacts, lack control and deal poorly with random or periodic “events”.
Now with Spectralayers you can just separate dialog from background, quickly send any mistakes to their correct layer, and remove or attenuate whatever bothers you while keeping your rich, unique backgrounds (if that’s what you want), cleaning your dialogue perfectly (since you can constantly adjust the FFT size as your work, you can very quickly tackle even the most minute details, be it short or long, broad or narrow).
And I have seen this tested in real time a while back, when I supervised a TV series and the dialogue editors working with RX and real-time plugins simply couldn’t get rid of a LOT of stuff that I could clean up with SL very easily. I’d say “hey, you missed that at xx:xx:xx:xx:xx” (knowing that I absolutely could clean that with SL) and I’d get “oh, but that overlaps with word, is too broad, can’t clean it”. And these were editors with college degrees in cinema/audio and years of experience.
Why I’m not bothered by the caveats I pointed out:
Honestly, I have de-click modules already, I don’t really need another one. I have RX 10 declicker and Acon Digital declicker, and they take care of simple, generalized declicking jobs. Just I give it a pass after SL when needed.
They are not enough anyways, right? They work well with proper “clicks”, but if it is a ting, a scratch, a crumple, a crack, a ploc, a crash, or anything else that might excite the room, then you are toast. So they do their job, the spectral editor does its job. For detailed work the Transient selection + Reconstruct is the most transparent Declicker I’ve ever used.
De-reverb is the same. I already have de-reverbing tools that I prefer, so I use those for general de-reverbing.
Any particular more problematic passage will need special attention anyways, so when needed the other tools in SL are used.
The lag problem has improved tremendously to where it is almost a non issue, but I still hope Robin will fix it soon.
ARA is problematic, but all I need to do is: apply it, work on stuff, make permanent. That’s it. And that is MILES better than the old RX Connect days.
I think that is it.
For me the bottomline is: Even with all the problems, I find that Spectralayers allow me to work faster than the alternatives while delivering a superior result. It can do things in a way that no other software I know can, because of the SUM of its capabilities. Many times during work I just start laughing cause I was able to clean up something that I just cannot believe is possible. I very rarely have to comp room tone nowadays, or worry about audible loops, or whatever (I always hated comping room tone).
Speaking on a direct comparison between similar functions of RX and SL, I don’t think the results from the processing in RX are any better than in SL. And surely any marginal advantage RX could possibly have on specific processes quality is far surpassed by the undeliable workflow advantages SL has over it.
But that is for the SPECTRAL EDITING SIDE!!! (and my bias is towards Post-production)
I don’t use stem separation much, but from what people report here, there are (much) better alternatives. And I get it. We are in the AI age already, things like Stem Separation will always develop much faster than the lifecycle of Spectralayers is capable of keeping up with.
And to be honest I hope it keeps that direction. Stem separation in SL can save you in a pinch, but I hope Robin keeps focused on the Spectral Editing side, specially for post-production.
Man, these new modules are amazing. Reconstruct, Ambience Heal, Attenuate… are just such time-savers!
And let me add that no software is without bugs. A guy in this thread recommended Cedar Retouch, and I went to try it and it just refused to work at all. So…