Sound signal having directional information in vertical direction as tone characteristic of regenerative sound and its detection method
专利汇可以提供Sound signal having directional information in vertical direction as tone characteristic of regenerative sound and its detection method专利检索，专利查询，专利分析的服务。并且PURPOSE:To allow a listener to perceive regenerative sound in the vertical direction or before and behind directions other than right and left directions regarding the direction of sound source by using a directional microphone with the directivity set upward. CONSTITUTION:An aperture is made on side of an effective area of a microphone 1 having a small horn 2. Its diameter is about three centimeters and its depth is about one centimeter. The depth can be adjusted in the range of zero to five centimeters. A resonant cavity having a resonance point in audible range, which is formed by a cylinder 4 and piston-shaped movable bottom 5, is narrowed. By adjusting the depth of the resonant cavity by the movable bottom 5, it is possible to adjust static direction regarding vertical direction of a regenerative sound S' of a detected voice signal S. Especially, the static direction regarding the downward direction can be adjusted more securely.，下面是Sound signal having directional information in vertical direction as tone characteristic of regenerative sound and its detection method专利的具体信息内容。
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