Engine sound processing system
First Claim
1. An engine sound processing system comprising:
- a plurality of microphones that are provided outside an interior of a vehicle and collect an engine sound of a vehicle;
a sensor that senses driving condition of the vehicle;
a signal processing portion that processes the engine sound collected by the plurality of microphones and outputs processed signal; and
a control portion that controls the signal processing portion based on contents sensed by the plurality of sensors.
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Accused Products
Abstract
Microphones are provided to an intake port of an engine and a wall surface of an engine room on the interior side respectively to collect an engine sound. The engine sound is processed by a signal processing portion and output via a speaker provided to an interior of a vehicle. Filters for simulating the noise insulating characteristic in the interior of the vehicle and filters for processing the engine sound to emphasize the driving conditions are provided to the signal processing portion. Filter characteristics of the filters are decided in response to sensed values of an engine revolution sensor 30, an accelerator opening angle sensor, and a speed sensor. The driving conditions are emphasized by filtering the engine sound based on the filter characteristics.
36 Citations
7 Claims
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1. An engine sound processing system comprising:
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a plurality of microphones that are provided outside an interior of a vehicle and collect an engine sound of a vehicle;
a sensor that senses driving condition of the vehicle;
a signal processing portion that processes the engine sound collected by the plurality of microphones and outputs processed signal; and
a control portion that controls the signal processing portion based on contents sensed by the plurality of sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification