I'm trying to help a technician at my local GM dealer. I know they have Pico equipment, but the tech could not pick up the vibration on his equipment. (I'm sure the equipment recorded the vibration, but I'm guessing it was not sustained long enough for the analysis, which I suppose is an FFT, to show it)
When I took him for a ride, he then understood under at what driving conditions the vibration occurred.
I assume they have a NVH kit and a PicoScope 4000 Series Automotive oscilloscope, so lets base the discussion on that.
There is another way to go at this: Take an actual recording and snip out a few seconds, then reload that short piece of data to see if the FFT will handle it.
I tried to do that with the sample VW Golf data, but I could not see how to extract a few seconds of data (other than exporting it to a .csv file).