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    • 1. 发明授权
    • Engine sound processing system
    • 发动机声音处理系统
    • US08885845B2
    • 2014-11-11
    • US13398719
    • 2012-02-16
    • Yoshikazu HonjiYasuo YoshiokaTetsu Kobayashi
    • Yoshikazu HonjiYasuo YoshiokaTetsu Kobayashi
    • H04B1/00H03G5/00H03G9/00G10K15/04
    • G10K15/04
    • Microphones are provided at an air inlet of the engine and a vehicle-cabin-side wall surface of an engine room, and engine sounds are picked up. The engine sound is processed by a signal processing section, and the processed engine sound is output from a speaker provided in a vehicle cabin. The signal processing section is provided with a filter which simulates a sound insulation characteristic of the vehicle cabin and a transformation section for processing the engine sound according to driving condition. A spectrum transformation characteristic of the transformation section is determined according to values detected by a vehicle speed sensor, an engine speed sensor, and an accelerator depression sensor, and a spectrum of the engine sound is transformed by means of specification of the spectrum transformation characteristic, thereby enhancing an engine sound.
    • 在发动机的进气口和发动机室的车厢侧壁面设置有麦克风,并且拾取发动机声音。 发动机声音由信号处理部分处理,并且处理的发动机声音从设置在车厢中的扬声器输出。 信号处理部设置有模拟车厢的隔音特性的过滤器和根据驾驶状况处理发动机声音的变换部。 根据由车速传感器,发动机转速传感器和加速器凹陷传感器检测的值来确定变换部的频谱变换特性,通过频谱变换特性的规格来变换发动机声音的频谱, 从而增强发动机声音。
    • 7. 发明申请
    • ENGINE SOUND PROCESSING SYSTEM
    • 发动机声音处理系统
    • US20120148066A1
    • 2012-06-14
    • US13398719
    • 2012-02-16
    • Yoshikazu HONJIYasuo YoshiokaTetsu Kobayashi
    • Yoshikazu HONJIYasuo YoshiokaTetsu Kobayashi
    • H04B1/00
    • G10K15/04
    • Microphones are provided at an air inlet of the engine and a vehicle-cabin-side wall surface of an engine room, and engine sounds are picked up. The engine sound is processed by a signal processing section, and the processed engine sound is output from a speaker provided in a vehicle cabin. The signal processing section is provided with a filter which simulates a sound insulation characteristic of the vehicle cabin and a transformation section for processing the engine sound according to driving condition. A spectrum transformation characteristic of the transformation section is determined according to values detected by a vehicle speed sensor, an engine speed sensor, and an accelerator depression sensor, and a spectrum of the engine sound is transformed by means of specification of the spectrum transformation characteristic, thereby enhancing an engine sound.
    • 在发动机的进气口和发动机室的车厢侧壁面设置有麦克风,并且拾取发动机声音。 发动机声音由信号处理部分处理,并且处理的发动机声音从设置在车厢中的扬声器输出。 信号处理部设置有模拟车厢的隔音特性的过滤器和根据驾驶状况处理发动机声音的变换部。 根据由车速传感器,发动机转速传感器和加速器凹陷传感器检测的值来确定变换部的频谱变换特性,通过频谱变换特性的规格来变换发动机声音的频谱, 从而增强发动机声音。