PROBLEM TO BE SOLVED: To perform natural sound effect suitable for a sensitivity of operation of a driver, in a vehicle equipped with an internal combustion engine.SOLUTION: An ASC device 11 which actively generates sound effect in a cabin of a vehicle 15 equipped with a motor and an internal combustion engine 13 as a drive source includes a reference signal generating part 55 which generates a reference signal of a harmonic wave based on a car speed correspondence frequency fq being a frequency based on a car speed cs by referencing a waveform data, an operation seat speaker 25 for outputting a voice sound including the sound effect, and a signal processing part 61 which generates a control signal that is to be a sound effect by multiplying the reference signal with a sound effect gain (amplitude adjustment gain) Gef related to the reference signal, and outputs the control signal to the operation seat speaker 25 as a sound voice. The signal processing part 61 sets the sound effect gain Gef based on a charging state of a storage battery.SELECTED DRAWING: Figure 1
【課題】内燃機関エンジンを備える車両において、運転者の操縦に係る感性に適合した自然な効果音を演出する。【解決手段】駆動源として内燃機関エンジン13及び電動機を備える車両15の室内に効果音を能動的に発生させるASC装置11は、車速csに基づく周波数である車速対応周波数fqに基づく調波の基準信号を、波形データを参照することで生成する基準信号生成部55と、効果音を含む音声を出力する運転席スピーカ25と、基準信号に係る効果音ゲイン(振幅調整ゲイン)Gefを当該基準信号に乗算することで効果音となる制御信号を生成すると共に、当該制御信号を運転席スピーカ25音声に出力する信号処理部61と、を備える。信号処理部61は、蓄電池の充電状態に基づいて効果音ゲインGefを設定する。【選択図】図1
ACTIVE SOUND EFFECT GENERATING DEVICE
能動型効果音発生装置
2017-11-16
Patent
Electronic Resource
Japanese
ACTIVE SOUND EFFECT GENERATING DEVICE AND ACTIVE SOUND EFFECT GENERATING METHOD
European Patent Office | 2025
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