Vehicles today by most namplates have a white noise generator that counteracts certain frequencies into the cabin area
Of course, the health of a person's hearing will depend on what they hear or not, like or dislike in C8 sounds
Also as to E-Ray & ZR1X models, C8 Owner's manual :
Pedestrian Safety Signal (E-Ray and ZR1X Only)
The vehicle is equipped with automatic sound generation.
The automatic sound is generated to indicate the vehicle presence to pedestrians.
The sound changes if the vehicle will be speeding up or slowing down.
It is activated when the vehicle is driving or shifted into a forward gear, N (Neutral), or R (Reverse), up to driving
speeds of 25 km/h (15 mph) or 35 km/h (22 mph), depending on region of sale.
Also, driver can set the NPP exhaust system as what the sound level will be
Engine Sound Management Setting
Caution
Do not place the vehicle in Engine Sound Management – Stealth mode.
Damage could result to exhaust valve actuators.
Engine Sounds: Stealth, Tour, Sport, Track
Caution
Stealth engine sound selection restricts exhaust flow and as a result acceleration can be delayed for spirited driving.
This is particularly true for heavy acceleration maneuvers in Engine/Shift selections of Sport or Track.
Using a stealth engine sound setting during spirited driving will cause the exhaust system to overheat and damage the
variable exhaust valves.
Do not use this setting when auto-crossing or driving on high speed tracks.
If available, engine sound settings change when the variable exhaust valves open.