公开(公告)号：US09151662B2

公开(公告)日：2015-10-06

申请号：US13360123

申请日：2012-01-27

申请人： Mingsian R. Bai ,  Ching-Cheng Chen ,  Yi-Yang Lo ,  Chun-Kai Wang ,  Shen-Wei Juan

发明人： Mingsian R. Bai ,  Ching-Cheng Chen ,  Yi-Yang Lo ,  Chun-Kai Wang ,  Shen-Wei Juan

IPC分类号： H04R3/00 ,  G01H3/12

CPC分类号： G01H3/125

摘要： A method for visualizing sound source energy distribution in an echoic environment comprises steps: arranging in an echoic environment a plurality of arrayed sound pickup units, wherein each sound pickup unit includes at least two microphones separated by a directive distance enabling the sound pickup unit to have a primary pickup direction; disposing the sound pickup units with the primary pickup directions thereof pointing toward a sound source in the echoic environment, and measuring the sound source by the sound pickup units to obtain a sound source-related parameter; substituting the directive distance and the parameter into an algorithm to make the parameter have directivity; and then substituting the parameter into an ESM algorithm to establish a sound source energy distribution profile. Thereby, the method can measure a sound source in a specified direction in an echoic environment and establish a visualized sound source energy distribution profile.

摘要翻译： 一种用于在回声环境中可视化声源能量分布的方法包括以下步骤：在回声环境中布置多个排列的拾音单元，其中每个声音拾取单元包括由指示距离分开的至少两个麦克风，使得声音拾取单元具有 主要方向; 在所述回声环境中将所述拾音单元的主要拾取方向指向声源，并且通过所述声音拾取单元测量所述声源以获得声源相关参数; 将指令距离和参数代入算法中，使参数具有方向性; 然后将该参数代入ESM算法以建立声源能量分布曲线。 因此，该方法可以在回波环境中测量指定方向上的声源并建立可视化的声源能量分布曲线。

公开(公告)号：US20130142357A1

公开(公告)日：2013-06-06

申请号：US13360123

申请日：2012-01-27

申请人： Mingsian R. BAI ,  Ching-Cheng Chen ,  Yi-Yang Lo ,  Chun-Kai Wang ,  Shen-Wei Juan

发明人： Mingsian R. BAI ,  Ching-Cheng Chen ,  Yi-Yang Lo ,  Chun-Kai Wang ,  Shen-Wei Juan

IPC分类号： H04R3/00

CPC分类号： G01H3/125

摘要： A method for visualizing sound source energy distribution in an echoic environment comprises steps: arranging in an echoic environment a plurality of arrayed sound pickup units, wherein each sound pickup unit includes at least two microphones separated by a directive distance enabling the sound pickup unit to have a primary pickup direction; disposing the sound pickup units with the primary pickup directions thereof pointing toward a sound source in the echoic environment, and measuring the sound source by the sound pickup units to obtain a sound source-related parameter; substituting the directive distance and the parameter into an algorithm to make the parameter have directivity; and then substituting the parameter into an ESM algorithm to establish a sound source energy distribution profile. Thereby, the method can measure a sound source in a specified direction in an echoic environment and establish a visualized sound source energy distribution profile.

摘要翻译： 一种用于在回声环境中可视化声源能量分布的方法包括以下步骤：在回声环境中布置多个排列的拾音单元，其中每个声音拾取单元包括由指示距离分开的至少两个麦克风，使得声音拾取单元具有 主要方向; 在所述回声环境中将所述拾音单元的主要拾取方向指向声源，并且通过所述声音拾取单元测量所述声源以获得声源相关参数; 将指令距离和参数代入算法中，使参数具有方向性; 然后将该参数代入ESM算法以建立声源能量分布曲线。 因此，该方法可以在回波环境中测量指定方向上的声源并建立可视化的声源能量分布曲线。

公开(公告)号：US20130329907A1

公开(公告)日：2013-12-12

申请号：US13605286

申请日：2012-09-06

申请人： Mingsian R. Bai ,  Ching-Cheng Chen ,  Yi-Yang Lo

发明人： Mingsian R. Bai ,  Ching-Cheng Chen ,  Yi-Yang Lo

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  H04R2201/403 ,  H04R2430/25

摘要： A miniature electronic shotgun microphone, which is used to receive a sound source from a specified direction, comprises a pick-up member, an A/D (Analog/Digital) conversion unit, and a digital signal processor. The pick-up member includes a first pick-up unit, a second pick-up unit separated from the first pick-up unit by a first distance, and a third pick-up unit separated from the second pick-up unit by a second distance; the first distance is greater than the second distance. The first pick-up unit, the second pick-up unit and the third pick-up unit respectively receive the sound source and output an analog signal. The A/D conversion unit and the digital signal processor process the analog signals, and convert them into a directional digital acoustic signal. Thus, the directional digital acoustic signal has a maximum pick-up frequency. Thereby is decreased grating lobes and spatial aliasing.

摘要翻译： 用于从指定方向接收声源的微型电子霰弹枪麦克风包括拾取构件，A / D（模数/数字）转换单元和数字信号处理器。 拾取构件包括第一拾取单元，与第一拾取单元分离第一距离的第二拾取单元和第二拾取单元，第二拾取单元与第二拾取单元分离，第二拾取单元 距离; 第一距离大于第二距离。 第一拾取单元，第二拾取单元和第三拾取单元分别接收声源并输出模拟信号。 A / D转换单元和数字信号处理器处理模拟信号，并将其转换为定向数字声信号。 因此，定向数字声信号具有最大的拾取频率。 从而减少了栅瓣和空间混叠。

公开(公告)号：US09148723B2

公开(公告)日：2015-09-29

申请号：US13605286

申请日：2012-09-06

申请人： Mingsian R. Bai ,  Ching-Cheng Chen ,  Yi-Yang Lo

发明人： Mingsian R. Bai ,  Ching-Cheng Chen ,  Yi-Yang Lo

IPC分类号： H04R3/00

CPC分类号： H04R3/005 ,  H04R2201/403 ,  H04R2430/25

摘要： A miniature electronic shotgun microphone, which is used to receive a sound source from a specified direction, comprises a pick-up member, an A/D (Analog/Digital) conversion unit, and a digital signal processor. The pick-up member includes a first pick-up unit, a second pick-up unit separated from the first pick-up unit by a first distance, and a third pick-up unit separated from the second pick-up unit by a second distance; the first distance is greater than the second distance. The first pick-up unit, the second pick-up unit and the third pick-up unit respectively receive the sound source and output an analog signal. The A/D conversion unit and the digital signal processor process the analog signals, and convert them into a directional digital acoustic signal. Thus, the directional digital acoustic signal has a maximum pick-up frequency. Thereby is decreased grating lobes and spatial aliasing.

摘要翻译： 用于从指定方向接收声源的微型电子霰弹枪麦克风包括拾取构件，A / D（模数/数字）转换单元和数字信号处理器。 拾取构件包括第一拾取单元，与第一拾取单元分离第一距离的第二拾取单元和第二拾取单元，第二拾取单元与第二拾取单元分离，第二拾取单元 距离; 第一距离大于第二距离。 第一拾取单元，第二拾取单元和第三拾取单元分别接收声源并输出模拟信号。 A / D转换单元和数字信号处理器处理模拟信号，并将其转换为定向数字声信号。 因此，定向数字声信号具有最大的拾取频率。 从而减少了栅瓣和空间混叠。