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公开(公告)号：US09635481B2
公开(公告)日：2017-04-25
申请号：US14809354
申请日：2015-07-27
Inventor： Hiroyuki Matsumoto , Shuichi Watanabe , Toshimichi Tokuda , Hisashi Tsuji , Akitoshi Izumi , Shintaro Yoshikuni
IPC: H04R29/00
CPC classification number: H04R29/004
Abstract: A failure detection system includes an omnidirectional microphone array device having a plurality of microphone elements and a directivity control device that calculates a delay time of a voice propagated from a sound source to each microphone element and forms a directivity of the voice using the delay time and the voice collected by the omnidirectional microphone array device, and detects a failure of the microphone element. A smoothing unit calculates an average power of one microphone element. An average calculator calculates a total average power of a plurality of usable microphone elements included in the omnidirectional microphone array device. A comparison unit compares whether or not a difference between the average power and the total average power exceeds a range of ±6 dB, and determines whether the microphone element is in failure based on the comparison result.
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公开(公告)号：US09578413B2
公开(公告)日：2017-02-21
申请号：US14809618
申请日：2015-07-27
Inventor： Hirotaka Sawa , Toshimichi Tokuda , Shuichi Watanabe , Hiroyuki Matsumoto , Hisashi Tsuji , Shintaro Yoshikuni
CPC classification number: H04R1/406 , H03G3/32 , H04R3/005 , H04R27/00 , H04R2430/01 , H04R2499/11
Abstract: An audio processing system, includes: an audio collector that collects audio in a non-directivity state using audio collection elements; an operator receives an input of one or more designation directions for audio emphasis for switching from the non-directivity state to a directivity state; an emphasis processor that generates audio data in the directivity state obtained by performing an emphasis process on the audio data in the designation direction from the audio collector using audio data collected by the audio collector according to the input of the designation direction; a volume adjustor that adjusts volume of the audio data in a directivity state; and an audio output that outputs the audio in a non-directivity state collected by the audio collector or the audio in a directivity state after the volume has been adjusted by the volume adjustor.
Abstract translation: 一种音频处理系统，包括：使用音频收集元件以非方向性状态收集音频的音频收集器; 操作者接收用于音频强调的一个或多个指定方向的输入，用于从非方向性状态切换到方向性状态; 根据指定方向的输入，利用由音频收集器收集的音频数据，从音频收集器对指定方向上的音频数据进行强调处理，生成指向性状态的音频数据; 音量调节器，其以指向性状态调节音频数据的音量; 以及音频输出，其在通过音量调节器调节音量之后，以指向性状态输出由音频收集器或音频收集的非指向性状态的音频。
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公开(公告)号：US10244219B2
公开(公告)日：2019-03-26
申请号：US15782953
申请日：2017-10-13
Inventor： Hirotaka Sawa , Shinichi Shigenaga , Shuichi Watanabe , Hiroyuki Matsumoto , Akitoshi Izumi
IPC: H04N9/802 , G11B31/00 , H04N5/93 , H04N21/234 , H04N21/81 , H04R3/00 , H04N9/82 , H04N9/87 , H04N5/225 , G11B27/34 , H04R1/08 , H04R27/00 , G11B27/10 , H04R1/04 , H04R1/40 , H04R29/00
Abstract: A sound and video processing system includes: a display, having a rectangular display region, that displays a video image in a circular video-image display region smaller than the rectangular display region; and a sound collector that collects sound. A processor generates emphasized audio data, in which sound is emphasized in at least one direction from a position of the sound collector toward at least one position corresponding to at least one designated location in the video image. In response to receiving designation outside the video-image display region, the processor displays a state display area or an adjustment operation area for the sound to be output from the speaker in a rectangular region which has a diagonal line extending from one of four corners of the rectangular display region to a center of the video-image display region and intersecting with a boundary line of the video-image display region.
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公开(公告)号：US10244162B2
公开(公告)日：2019-03-26
申请号：US15830776
申请日：2017-12-04
Inventor： Hirotaka Sawa , Toshimichi Tokuda , Shinichi Shigenaga , Shuichi Watanabe , Shojiro Matsuo , Takashi Hirabara , Tadashi Maki , Hisashi Tsuji , Teppei Fukuda , Akitoshi Izumi , Shintaro Yoshikuni , Hiroyuki Matsumoto , Kazunori Hayashi , Kosuke Shinozaki
Abstract: A directionality control system includes: a camera; a microphone provided as a separate body from the camera; a display that displays video data captured by the camera; and a processor that computes a sound collection direction, which is directed from the microphone toward a sound position corresponding to a designated position in the video data. The processor computes the sound collection direction by using parameters including: a first height of the camera from a reference surface, a second height of the microphone from the reference surface, a third height of a computation reference point from the reference surface, the computation reference point being positioned in the sound collection direction at a position different from the sound position, a direction which is directed from the camera toward the sound position, and a fourth height of the sound position from the reference surface.
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