MICROPHONE ARRAY DEVICE

• Main Authors: SANO YUSUKE, YAMAGUCHI AKIFUMI, OKITA SHIOTO, IDA KATSUHISA
• Format: Patent
• Language: English; Japanese
• Published: 17.05.2022
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

To provide a microphone array device which improves portability and suppresses interference of sonic waves.SOLUTION: A microphone array device 1 comprises a plurality of microphones and a housing 10 in which the microphones are stored. The housing is disposed on an XY virtual plane P1 and includes: a first mounting hole which is opened on an end face of the housing in a +X axis direction and in which a first microphone is mounted; a second mounting hole 11h2 which is opened on an end face of the housing in a -X axis direction and in which a second microphone 22 is mounted: a third mounting hole 11h3 which is opened on an end face of the housing in a +Y axis direction and in which a third microphone 23 is mounted; and a fourth mounting holes 11h4 which is opened on an end face of the housing in a -Y axis direction and in which a fourth microphone 24 is mounted. An X-axis length between an opening end of the first mounting hole and an opening end of the second mounting hole is shorter than a Y-axis length Ly between an opening end of the third mounting hole and an opening end of the fourth mounting hole and/or a Z-axis length Lz of the housing.SELECTED DRAWING: Figure 5 【課題】可搬性が良く、音波の干渉が抑制されるマイクロホンアレイ装置を提供する。【解決手段】マイクロホンアレイ装置１は、複数のマイクロホンとこれらを収容するハウジング１０とを有してなる。ハウジングは、ＸＹ仮想平面Ｐ１上に配置され、ハウジングの＋Ｘ軸方向の端面に開口し第１マイクロホンが取り付けられる第１取付孔と、ハウジングの－Ｘ軸方向の端面に開口し第２マイクロホン２２が取り付けられる第２取付孔１１ｈ２と、ハウジングの＋Ｙ軸方向の端面に開口し第３マイクロホン２３が取り付けられる第３取付孔１１ｈ３と、ハウジングの－Ｙ軸方向の端面に開口し第４マイクロホン２４が取り付けられる第４取付孔１１ｈ４と、を備える。第１取付孔の開口端と第２取付孔の開口端との間のＸ軸長さは、第３取付孔の開口端と第４取付孔の開口端との間のＹ軸長さＬｙおよび／またはハウジングのＺ軸長さＬｚよりも短い。【選択図】図５