PROBLEM TO BE SOLVED: To enable the proper suppression of the influence of external noise to reproduction sound.SOLUTION: An acoustic device of an embodiment acquires the frequency characteristics of external noise due to road noise and converts the acquired frequency characteristics of the external noise into hearing sensitivity characteristics according to the frequency characteristics of the hearing sensitivity. The acoustic device sets a parameter according to the hearing sensitivity characteristics to an equalizer. The equalizer corrects the frequency characteristics of an audio signal reproduced in a reproduction unit according to the set parameter.
【課題】再生音に対する外来ノイズの影響を適切に抑制可能とする。【解決手段】実施形態の音響装置は、ロードノイズなどによる外来ノイズの周波数特性を取得して、取得した外来ノイズの周波数特性を聴覚感度の周波数特性に従い聴覚感度特性に変換する。当該音響装置は、聴覚感度特性に従ったパラメータをイコライザに設定する。イコライザは、設定されたパラメータに従い、再生部で再生されたオーディオ信号の周波数特性を補正する。【選択図】図3
ACOUSTIC DEVICE, ACOUSTIC PROCESSING METHOD, AND ACOUSTIC PROCESSING PROGRAM
音響装置、音響処理方法および音響処理プログラム
2015-06-18
Patent
Elektronische Ressource
Japanisch
IPC: | H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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