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公开(公告)号：US09384727B2
公开(公告)日：2016-07-05
申请号：US13387763
申请日：2010-07-30
IPC分类号： G10K11/16 , G10K11/178
CPC分类号： G10K11/1788 , G10K11/178
摘要： The present invention refers to an active sound reduction system and method for attenuation of sound emitted by a primary sound source, especially for attenuation of snoring sounds emitted by a human being. This system comprises a primary sound source, at least one speaker as a secondary sound source for producing an attenuating sound to be superposed with the sound emitted by said primary sound source, a reference microphone for receiving sound from said primary sound source, and at least one error microphone being allocated to each speaker to form a speaker/microphone pair. The at least one error microphone is provided as a directional microphone pointing at its allocated speaker to receive residual sound resulting from the superposition of the sounds from the primary sound source and the corresponding speaker. The error microphone and speaker of at least one speaker/microphone pair and the primary sound source are arranged substantially collinear. A control unit is provided to receive an output reference signal of the reference microphone representing the sound received by the reference microphone and an output error signal of the at least one error microphone representing the sound received by the at least one error microphone and to calculate a control signal for the speaker from the output reference signal and the output error signal.
摘要翻译： 本发明涉及一种用于衰减由主声源发出的声音的主动减声系统和方法，特别是用于衰减由人发射的打鼾音。 该系统包括主声源，至少一个扬声器作为次声源，用于产生与所述主声源发射的声音叠加的衰减声音，用于从所述主声源接收声音的参考麦克风，并且至少 一个错误麦克风被分配给每个扬声器以形成扬声器/麦克风对。 提供至少一个误差麦克风作为指向其分配的扬声器的定向麦克风，以接收由来自主声源和相应扬声器的声音叠加而产生的残留声音。 至少一个扬声器/麦克风对和主声源的误差麦克风和扬声器基本上共线布置。 提供控制单元以接收表示由参考麦克风接收的声音的参考麦克风的输出参考信号，以及表示由至少一个误差麦克风接收的声音的至少一个误差麦克风的输出误差信号，并计算一个 来自输出参考信号的扬声器的控制信号和输出误差信号。
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公开(公告)号：US20120163626A1
公开(公告)日：2012-06-28
申请号：US13387763
申请日：2010-07-30
IPC分类号： H04R3/00
CPC分类号： G10K11/1788 , G10K11/178
摘要： The present invention refers to an active sound reduction system and method for attenuation of sound emitted by a primary sound source, especially for attenuation of snoring sounds emitted by a human being. This system comprises a primary sound source, at least one speaker as a secondary sound source for producing an attenuating sound to be superposed with the sound emitted by said primary sound source, a reference microphone for receiving sound from said primary sound source, and at least one error microphone being allocated to each speaker to form a speaker/microphone pair. The at least one error microphone is provided as a directional microphone pointing at its allocated speaker to receive residual sound resulting from the superposition of the sounds from the primary sound source and the corresponding speaker. The error microphone and speaker of at least one speaker/microphone pair and the primary sound source are arranged substantially collinear. A control unit is provided to receive an output reference signal of the reference microphone representing the sound received by the reference microphone and an output error signal of the at least one error microphone representing the sound received by the at least one error microphone and to calculate a control signal for the speaker from the output reference signal and the output error signal.
摘要翻译： 本发明涉及一种用于衰减由主声源发出的声音的主动减声系统和方法，特别是用于衰减由人发射的打鼾音。 该系统包括主声源，至少一个扬声器作为次声源，用于产生与所述主声源发射的声音叠加的衰减声音，用于从所述主声源接收声音的参考麦克风，并且至少 一个错误麦克风被分配给每个扬声器以形成扬声器/麦克风对。 提供至少一个误差麦克风作为指向其分配的扬声器的定向麦克风，以接收由来自主声源和相应扬声器的声音叠加而产生的残留声音。 至少一个扬声器/麦克风对和主声源的误差麦克风和扬声器基本上共线布置。 提供控制单元以接收表示由参考麦克风接收的声音的参考麦克风的输出参考信号，以及表示由至少一个误差麦克风接收的声音的至少一个误差麦克风的输出误差信号，并计算一个 来自输出参考信号的扬声器的控制信号和输出误差信号。
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