To improve bass-band sensitivity of a bidirectional microphone without lowering the signal-to-noise ratio.SOLUTION: A sound collecting device 10A includes a microphone unit 110A-1 that has bidirectionality along a first axis, and collects sounds arriving at a first point and a second point which are positions where respective sounds are collected and arranged on the first axis so as to be spaced from each other at a first interval, a microphone unit 110A-2 that has bidirectionality along a second axis that substantially overlaps the first axis, and collects sounds arriving at a third point and a fourth point which are positions where respective sounds are collected and arranged on the second axis so as to be spaced from each other at a second interval shorter than the first interval, and a composing unit 120A for composing an output signal output from the microphone unit 110A-1 and an output signal output from the microphone unit 110A-2, and outputting a composite signal.SELECTED DRAWING: Figure 1

    【課題】S/N比を低下させることなく双指向性マイクの低音域の感度を改善する。【解決手段】第1の軸に沿った双指向性を有し、各々音を収音する位置であり、第1の間隔を開けて第1の軸上に配置される第1の点と第2の点とに到来する音を収音するマイクユニット110A−1と、第1の軸に略重なる第2の軸に沿った双指向性を有し、各々音を収音する位置であり、第1の間隔よりも短い第2の間隔を開けて第2の軸上に配置される第3の点と第4の点とに到来する音を収音するマイクユニット110A−2と、マイクユニット110A−1から出力される出力信号とマイクユニット110A−2から出力される出力信号とを合成し、合成された信号を出力する合成部120Aと、を有する収音装置10Aを提供する。【選択図】図1


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    Title :

    SOUND COLLECTING DEVICE AND IN-VEHICLE KARAOKE DEVICE


    Additional title:

    収音装置、及び車載カラオケ装置


    Contributors:

    Publication date :

    2021-02-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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