September 12, 2013

DETROIT – Cadillac engineers applied the principles of psychoacoustics, the science of sound perception, and car-guy instinct to create powerful and pleasant exhaust notes for the all-new 2014 CTS midsize luxury sedan and CTS Vsport.

Knowing that engine sound communicates throttle response to the driver, CTS engineers uniquely tuned each selectable driving mode – Tour, Sport and Track – to provide the driver with a specific sound impression of what’s happening under the hood.

Tour mode purrs with refinement. Sport mode growls with power. Track mode, only available on the CTS Vsport equipped with Cadillac’s first Twin-Turbo engine, roars even more aggressively.

The team drew upon its knowledge of what tones sound the most pleasing to human ears based on the study of psychoacoustics, surveyed the sounds made by competitor models and relied on their own ears when selecting final tones.

Source
GM News