I am using Spectralayer 7.0.21 Pro Standalone for a specific task, importing multiple files for noise reduction and processing, while comparing the files to get similar results. I´d hoped this would be the perfect task for SL7, since much of the work consists of selecting harmonics and reducing noise.
I have encountered issues on the way:
Dragging bars to set values (for example setting FFT Size) is erratic. When setting FFT size to max, if I try to get hold of the bar again I seem to catch the edge of the whole SL window instead. When dragging the Min Amplitude bar to the left, there seems to be no stop - I can drag the mouse across the whole SL window and the value keeps decreasing. Sometimes there isn´t even a selection arrow showing up when hovering over the bar, but a selector tool instead and it´s impossible to get hold of the bar. Trying to select a value in one of the bars is also difficult sometimes, The tool changes somewhat erratic between the arrows to drag the bar and the selector to select and input values manually - regardles of clicking/doubleclicking. The only safe way seem to be right click and select all, and input the value manually.
There is no batch function, and I have found no way in the standalone app to load multiple audio files as layers at once. In a DAW it is possible to do this though, by importing the audio files as new tracks, selecting all and then start SL as an extension on all of them simultaneously. This in fact loads all files at once into separate layers in the same SL project. The problem for me though is that this leads to CPU spikes that makes it impossible to work with the files in SL, or even crashing the host. I have tried this in both Cubase 11 and Nuendo 11 but the issue persists. This is on a 4,2GHz (7700) i7 with 32MB RAM / Windows 10, and the source files where short 88,2/16 files. I could see this would be an issue if SL was a real time processor, but my understanding is that the changes you do are processed into a new file? And when simply opening an audio file in SL it should behave like any multitrack player when the file has been transferred/analyzed and a view is rendered? But in short, it seems like multi layer handling need optimizing.
I´d also +1 on the request to be able to split files in more ways, and more editing choices. For example, edit L/R separately, split L - R to separate layers and split Sides/Mid for separate editing, cut harmonics in harmonic selecion to separate layers for easy adjustment of their individual levels etc.
Harmonic selection is another area where the functionality is great but a bit lacking. I would really like the possibility to easily “lock” to a frequency when dragging the selection without the selection “wandering off” up or down when the source signal becomes weaker. Transform got a similar “lock” in recent upgrades (axis lock), but it should be possible to do this on the fly with a Global key command working with all selections/transforms (holding Alt or Ctrl to lock iehter axis when dragging). I guess I could find a work around by manually inputting values in the selection fields, but it would take a while to figure out how because of the way those values depend on each other - I haven´t managed to sort that out yet but it´s not very intuitive.
Shortcuts and navigation seem to be a bit erratic. I can zoom in the frequency with +, but not zoom out with -. I have made new shortcuts for play/stop/return to start etc, and they doesn´t always work (especially when working with SL as an extension). When dragging the playback head to the right end of the spectrum window the display scrolls to the right instantly, but when I drag it to the left it´s really lagging. It also moves in steps when dragging the playback head regardless of what scrolling option is set (for example continous). There really should be a bar on the bottom to navigate towards start or end in the layer, though the overview on top is great and works as expected.
Is it not possible to define the mouse wheel shortcut in more ways than selecting one of the two preconfigured behaviours (Ctrl or Alt + mouse wheel for Scroll and 3D Zoom)? If I would like to use Shift scroll for frequency zoom for example? I can´t find it in the OM (and the online help is really limited).