The present invention relates to a virtual exhaust sound output apparatus and a method thereof, and more specifically, relates to a virtual exhaust sound output apparatus which comprises: a control unit; a plurality of PWM signal processing units; a first to a third mixing units; a first gain and a second gain; a background noise generation unit; a filter; a blowoff valve sound generation unit; an amplifier; and a speaker, and a method thereof. The PWM signal-processing unit receives an input of a PWM signal outputted by the control unit to adjust a signal level through the filter and the gains and output a virtual exhaust sound to the first mixing unit. The first mixing unit mixes the signals outputted by the plurality of PWM signal processing units to output the virtual exhaust sound to the first gain. The first gain adjusts the level of the virtual exhaust sound in accordance with a control signal of the control unit to output the virtual exhaust sound. The second mixing unit mixes the virtual exhaust sound outputted by the first gain with a background noise signal generated by the background noise generation unit, which is to make the virtual exhaust sound similar to a natural sound, to output the virtual exhaust sound. The third mixing unit mixes the virtual exhaust sound, which is mixed with the background noise signal, with a blowoff valve sound signal generated by the blowoff valve sound generation unit, to output the virtual exhaust sound. The signal outputted by the third mixing unit is amplified by the amplifier to be outputted by the speaker. The present invention is to provide a virtual exhaust sound output apparatus and a method thereof, which are capable of generating a pleasant exhaust sound in all types of automobiles.

    본 발명은 가상 배기음 출력 장치 및 방법에 관한 것으로, 보다 상세하게는 제어부와, 다수개의 PWM 신호처리부, 제1 내지 제3 믹싱부, 제1 및 제2 게인, 배경잡음 발생부, 필터, 블로우오프 밸브 사운드 발생부, 앰프 및 스피커를 포함하는 가상 배기음 출력 장치로서, 상기 PWM 신호처리부는 제어부에서 출력되는 PWM 신호를 입력받아 필터와 게인을 통해 신호 레벨을 조정하여 제1 믹싱부로 가상 배기음을 출력하며, 제1 믹싱부는 다수개의 PWM 신호처리부를 통해 출력되는 신호들을 믹싱하여 제1 게인으로 가상 배기음을 출력하고, 제1 게인은 제어부의 제어신호에 따라 가상 배기음의 레벨을 조정하여 출력하며, 제2 믹싱부는 제1 게인으로부터 출력되는 가상 배기음을 자연음에 가깝게 만들기 위해 구성된 배경잡음 발생부로부터 발생된 배경잡음 신호와 믹싱하여 출력하고, 제3 믹싱부는 배경잡음 신호가 믹싱된 가상 배기음과 블로우오프 밸브 사운드 발생부로부터 발생되는 블로우오프 밸브(Blowoff valve) 사운드 신호와 믹싱하여 출력하며, 제3 믹싱부로부터 출력된 신호를 앰프를 통해 증폭하여 스피커를 통해 출력하는 것을 특징으로 한다.


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    Title :

    Apparatus and method for Virtual Exhaust Sound


    Additional title:

    가상 배기음 출력 장치 및 방법


    Contributors:

    Publication date :

    2017-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler



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