Lexus ES: System Description
SYSTEM DESCRIPTION
ACTIVE NOISE CONTROL SYSTEM
(a) The active noise control system is a system that detects muffled engine sounds produced in sync that fluctuates according to the engine speed, by using the active noise control microphone and outputs anti-phase control sound through the audio speakers to reduce muffled engine sounds.
The active noise control system includes the following functions.
Function Name | Function Description | Operation Conditions |
ANC (Active Noise Control) Function | Function that reduces noise by using anti-phase and vibration control sound to interfere with muffled sounds | Engine running |
ESE (Engine Sound Enhancement) Function | Function that produces realistic engine sounds by adding frequency component sound according to driving conditions such as vehicle speed and accelerator pedal depression | Both of the following conditions are met: -
Engine running, vehicle speed exceeding 0 km/h (0 mph)
-
Drivemode "Sport S+", "Sport S" or "Custom" (Power) is selected.
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