发明名称 ACTIVE SOUND REDUCTION SYSTEM AND METHOD
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.
申请公布号 WO2011015979(A2) 申请公布日期 2011.02.10
申请号 WO2010IB53472 申请日期 2010.07.30
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V.;BOOIJ, PAUL, S.;VAN LEEST, ADRIAAN, J.;AARTS, RONALDUS, M. 发明人 BOOIJ, PAUL, S.;VAN LEEST, ADRIAAN, J.;AARTS, RONALDUS, M.
分类号 G10K11/178 主分类号 G10K11/178
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