I just got home and am surprised no one picked up on this idea. Can see some potential flaws but, it is an interesting way of cutting out noise. If you aren’t above PSL mute noise.www.tmg-facets.com: Product - Facets Product Design & Development Ltd.
Adaptive threshold mode: Radar detector is only switched on beyond legal speed limit .
Posted from my iPhone using the RDF Mobile App!
A few detectors allow you to set quiet ride or savvy etc.
JBV1's Silent Ride feature has been doing all of this for months. Adaptive, fixed, and disabled. Only problem is OSM speed limits aren't always accurate.