Buzz, Squeak, and Rattle (BSR) in Vehicles: What It Is and Why It Matters?
Executive Summary Buzz, squeak, and rattle—collectively known as BSR—are intermittent noises that significantly influence customer perception of vehicle quality. Buzz refers to short, impact-triggered sounds at higher frequencies, squeak is a friction-induced noise caused by stick–slip motion between two parts, and rattle results from impact between loose components. Automakers care deeply about BSR because it…
