PROCESSOR, PROCESSING METHOD AND PROGRAM

• Main Authors: SHIMOJO TAKAHIRO, FUJII YUMI, KONISHI MASAYA, MURATA TOSHIKO, KOCHI KUNIAKI
• Format: Patent
• Language: English; Japanese
• Published: 03.10.2019
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SOUND-PRODUCING DEVICES; STEREOPHONIC SYSTEMS

To provide a processor, a processing method and a program that can easily measure transfer characteristics.SOLUTION: A processor 210 according to an embodiment of the present invention comprises: a sound pickup signal acquisition part 212 which acquires sound pickup signals picked up by right and left microphones 2L, 2R through a monaural input terminal 8; a switching unit 7 which changes a connection state so that a first sound pickup signal picked up only by the left microphone 2L and a second sound pickup signal picked up only by the right microphone 2R are input; an inter-ear distance acquisition part 214 which acquires an inter-ear distance of a listener; a front time difference acquisition part 213 which acquires a front time difference; an incidence time difference calculation part 215 which calculates an incidence time difference on the basis of an angle θ, the front time difference, and the inter-ear distance; and a transfer characteristics generation part 216 which imparts a delay corresponding to the incidence time difference between the first and second sound pickup signals to calculate transfer characteristics.SELECTED DRAWING: Figure 2 【課題】簡便に伝達特性を測定することができる処理装置、処理方法、及びプログラムを提供することを目的とする。【解決手段】本実施の形態にかかる処理装置２１０は、モノラル入力端子８を介して、左右のマイク２Ｌ、２Ｒで収音された収音信号を取得する収音信号取得部２１２と、左のマイク２Ｌのみから収音された第１の収音信号、及び、右のマイク２Ｒのみから収音された第２の収音信号が入力されるように接続状態を切替える切替器７と、受聴者の両耳間距離を取得する両耳間距離取得部２１４と、正面時間差を取得する正面時間差取得部２１３と、角度θと、正面時間差と、両耳間距離と、に基づいて、入射時間差を算出する入射時間差算出部２１５と、第１及び第２の収音信号に入射時間差に応じた遅延を与えて、伝達特性を算出する伝達特性生成部２１６と、を備えたものである。【選択図】図２