Yes, the Noise and Vibration Suppression system (NVS) was introduced on the Dash 8 turboprop family in 1996. Basically, a microphone picks-up external noises (air from the propeller hitting the fuselage) inverts the signal and broadcasts this signal back into the airframe – essentially cancelling the incoming noise. Similar to the Active Noise Reduction in pilot headsets.

It gets a bit more complicated when you have two out-of-sync engines, but with modern FADEC engines it isn’t nearly as problematic as previous EEC/manual systems.

Wasn’t this standard on the Saab 340 B+ and Saab 2000 before it appeared on the Dash?

Also just done a bit of research into the PCN (pavement classification number) for the hard surfaces at Guernsey and the ACN (aircraft classification number) for the EMB-195. It would seem that the max take off weight would have to be reduced from 59 tonnes to approx 57 tonnes. It looks like this has always been the case with 737 ops from EGJB but perhaps they have more flexibility in their payload capabilities to accommodate.