Very interesting learning experience.
I am working with the Slate VTM and watched the videos from Steve and Fabrice, especially Fabrice. The part I was interested in was the Sine Wave demonstration comparing to other tape emulations.
I thought I would do my own experiments here.
I generated a 20 second 24 bit 44.1 440 HZ Sine Wave and loaded it into SONAR X1.
I then called into play the Meter Bridge from Ozone 5 which has some incredible spectral visualizations.
It was so interesting to see all of the the things that the plug ins were doing to generate complimentary frequencies based on the fundamental also seeing the other things related to the tape saturation at higher input levels.
You can actually see and hear the noise floors go up and down when switching between the various IPS settings.
I did not know exactly what I was looking at but I can see where the Glue would come in as the plugins are definitely doing some very interesting things with the spectrum and this was on just a simple waveform.
Try it your self and see what I mean.
**Update**
Just put together a rough (did I say rough) video to let you see and hear what I was working with.
Hope you enjoy and gain some information and inspire you to try some experiments your self to see what results you get.
Tape Machine Plugin Experiments Video