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    VOICE CONFERENCE DEVICE
    1.
    发明公开
    VOICE CONFERENCE DEVICE 有权
    SPRACHKONFERENZEINRICHTUNG

    公开(公告)号：EP2026598A1

    公开(公告)日：2009-02-18

    申请号：EP07743602.0

    申请日：2007-05-17

    申请人： YAMAHA CORPORATION

    发明人： ISHIBASHI, Toshiaki ,  SUZUKI, Satoshi ,  TANAKA Ryo ,  UKAI Satoshi

    IPC分类号： H04R3/00 ,  H04M1/00 ,  H04M3/56 ,  H04R1/40

    CPC分类号： H04R3/005 ,  H04M3/56 ,  H04M3/568 ,  H04R27/00

    摘要： A audio conference device capable of detecting a talker's direction exactly and collecting a sound emitted from this direction at a high signal S/N ratio is provided. A detecting beam generating portion 811 applies a delay-sum process to sound collecting signal SS104 to SS113 of microphones MIC104 to MIC113 that are aligned densely in a center portion in the alignment direction, and generates detecting sound collecting beam signals MB101 to MB114. A outputting beam generating portion 812 applies a delay-sum process to sound collecting signals SS101 to SS116 of all microphones MIC101 to MIC116 that are aligned in the alignment direction to generate outputting collecting beam signals MB101' to MB114'. A sound collecting beam selecting portion 19 detects direction data MS corresponding to a sound collecting beam signal, which has the highest signal density, out of the detecting sound collecting beam signals MB101 to MB114, and feeds the sound collecting beam signal to an outputting beam selecting portion 813. The outputting beam selecting portion 813 selects a sound collecting beam signal corresponding to the direction data MS.

    摘要翻译： 提供一种能够精确地检测讲话者方向并以高信号S / N比率收集从该方向发出的声音的音频会议装置。 检测光束产生部分811对在对准方向的中心部分密集排列的麦克风MIC104至MIC113的声音收集信号SS104至SS113施加延迟和处理，并产生检测声音采集束信号MB101至MB114。 输出光束产生部分812对在对准方向上排列的所有麦克风MIC101至MIC116的声音收集信号SS101至SS116施加延迟和处理，以产生输出收集束信号MB101'至MB114'。 声音采集束选择部分19从检测声音采集束信号MB101至MB114中检测具有最高信号密度的声音采集束信号的方向数据MS，并将声音采集束信号馈送到输出光束选择 输出光束选择部分813选择与方向数据MS对应的声音采集束信号。

    SOUND EMISSION AND COLLECTION DEVICE
    3.
    发明公开
    SOUND EMISSION AND COLLECTION DEVICE 审中-公开
    声音发射和收集装置

    公开(公告)号：EP2214420A1

    公开(公告)日：2010-08-04

    申请号：EP08834939.4

    申请日：2008-09-30

    申请人： Yamaha Corporation

    发明人： UKAI, Satoshi ,  SUZUKI, Satoshi

    IPC分类号： H04R3/00 ,  H04R1/40

    CPC分类号： H04R3/005 ,  G01S3/8038 ,  G10L2021/02166

    摘要： A sound emitting and collecting apparatus that can precisely detect the talker direction based on a collected sound signal even when a sound is emitted from a loudspeaker is provided. Microphone units MU1 to MU8 collect a sound in sound collecting areas MA1 to MA8 formed so as to have rotational symmetry with the placement position of loudspeakers SP1 and SP2 as the center and generates composite signals SA1 to SA8 (hereinafter, SAk). Logarithm calculation sections L1 to L8 calculate logarithm values P k of power level of the composite signals SAk. An amplification section 11 calculates a power level average value AV from the logarithm values P k of power levels and a subtraction section subtracts the power level average value AV from the logarithm values P k of power level to generate differential signal levels D k . A maximum value detection section 12 compares differential signal levels D k and detects the maximum value. A control section 20 detects the direction of the sound collecting area corresponding to the differential signal level D kM indicating the maximum value as the talker direction.

    摘要翻译： 提供了一种声音发射和采集设备，即使当扬声器发出声音时，该声音发射和采集设备也可以基于采集的声音信号精确地检测讲话者方向。 麦克风单元MU1至MU8在与扬声器SP1和SP2的放置位置为中心形成旋转对称的声音收集区域MA1至MA8中收集声音，并生成合成信号SA1至SA8（在下文中称为SAk）。 对数计算部分L1至L8计算合成信号SAk的功率电平的对数值Pk。 放大部件11根据功率电平的对数值Pk计算功率电平平均值AV，减法部件从功率电平的对数值Pk中减去功率电平平均值AV，以产生差分信号电平Dk。 最大值检测部分12比较差分信号电平Dk并检测最大值。 控制部分20检测与表示最大值的差分信号电平DkM对应的声音收集区域的方向作为讲话者方向。

    POSITION DETECTION SYSTEM, AUDIO DEVICE AND TERMINAL DEVICE USED IN THE POSITION DETECTION SYSTEM
    4.
    发明公开
    POSITION DETECTION SYSTEM, AUDIO DEVICE AND TERMINAL DEVICE USED IN THE POSITION DETECTION SYSTEM 审中-公开
    在DEM定位系统中的位置代码系统VERWENDETE AUDIOEINRICHTUNGUNDGERÄTEEINRICHTUNG

    公开(公告)号：EP1962558A1

    公开(公告)日：2008-08-27

    申请号：EP06833587.6

    申请日：2006-11-29

    申请人： YAMAHA CORPORATION

    发明人： SUZUKI, Satoshi ,  ISHIBASHI, Toshiaki ,  TANAKA, Ryo

    IPC分类号： H04S5/02

    CPC分类号： G01S5/18 ,  G01S5/0027 ,  G01S5/26 ,  H04R1/323 ,  H04R1/403 ,  H04R3/12 ,  H04R2430/01 ,  H04R2430/20 ,  H04S7/301

    摘要： A position detecting system is provided, which is capable of effectively preventing erroneous detection of audio to be measured. The position detecting system includes a terminal device that inputs an audio signal from an audio device and a microphone. The audio device sequentially inputs measurement audio signals that have been formed by two or more audio signals of different frequencies to a speaker and receives a notification signal, wherein the report signal indicates that the audio of the measurement audio signal has been collected from the terminal device. The audio device clocks a time t1 and a time t2, namely clocks after the audio of the measurement audio signal is output from the speakers SP 1 --- SP2 until the notification signals of the measurement audio signals are received by the signal receiving unit. The audio device calculates the position of the microphone by using the times t1 and t2. For each frequency component of the measurement audio signal, when an audio signal exceeding a predetermined level is inputted from the microphone, the terminal device detects it as a component of the measurement audio signal and transmits a notification signal upon detection of the measurement audio signal.

    摘要翻译： 提供一种位置检测系统，其能够有效地防止要测量的音频的错误检测。 位置检测系统包括从音频设备和麦克风输入音频信号的终端设备。 音频装置将已经由两个或更多个不同频率的音频信号形成的测量音频信号顺序地输入到扬声器并接收通知信号，其中报告信号指示测量音频信号的音频已经从终端设备收集 。 音频设备对时间t1和时间t2进行计时，即从扬声器SP1至SP2输出测量音频信号的音频之后的时钟，直到由信号接收单元接收测量音频信号的通知信号。 音频设备通过使用时间t1和t2来计算麦克风的位置。 对于测量音频信号的每个频率分量，当从麦克风输入超过预定电平的音频信号时，终端设备将其作为测量音频信号的分量进行检测，并且在检测到测量音频信号时发送通知信号。