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公开(公告)号：EP4432701A1
公开(公告)日：2024-09-18
申请号：EP22916309.2
申请日：2022-10-04
发明人： KIM, Sungjin , KIM, Sohee , PARK, Haekeu , CHANG, Juhee , JEONG, Hyeonyeong
摘要： An electronic device according to various embodiments of the disclosure may include at least one microphone, a speaker, and a processor operatively connected to the at least one microphone and the speaker, wherein the processor may be configured to configure an operation frequency of the microphone as a first frequency and receive an external audio signal from the outside of the electronic device through the microphone operating in the first frequency, generate a first audio signal using the received external audio signal, acquire noise signal information, based on the first audio signal, output a second audio signal generated based on the noise signal information through the speaker, determine a second frequency, based on the generated second audio signal, and change the operation frequency of the microphone to the second frequency and receive the external audio signal from the outside of the electronic device through the microphone operating in the second frequency.
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公开(公告)号：EP3393140A1
公开(公告)日：2018-10-24
申请号：EP17196416.6
申请日：2017-10-13
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. , Friedrich-Alexander-Universität Erlangen-Nürnberg
发明人： LUIS VALERO, Maria , HABETS, Emanuel , ANNIBALE, Paolo , LOMBARD, Anthony , WILD, Moritz , RUTHA, Marcel
CPC分类号： H04R3/02 , G10L21/0208 , G10L2021/02082 , G10L2021/02166 , H04M9/082 , H04R3/005 , H04R25/453
摘要： An apparatus for multichannel interference cancellation in a received audio signal comprising two or more received audio channels to obtain a modified audio signal comprising two or more modified audio channels is provided. The apparatus comprises a first filter unit (112) being configured to generate a first estimation of a first interference signal depending on a reference signal. Moreover, the apparatus comprises a first interference canceller (114) being configured to generate a first modified audio channel of the two or more modified audio channels from a first received audio channel of the two or more received audio channels depending on the first estimation of the first interference signal. Furthermore, the apparatus comprises a second filter unit (122) being configured to generate a second estimation of a second interference signal depending on the first estimation of the first interference signal. Moreover, the apparatus comprises a second interference canceller (124) being configured to generate a second modified audio channel of the two or more modified audio channels from a second received audio channel of the two or more received audio channels depending on the second estimation of the second interference signal.
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公开(公告)号：EP3333850A1
公开(公告)日：2018-06-13
申请号：EP16855097.8
申请日：2016-09-29
发明人： SUZUKI, Ryoji , OHASHI, Hiromasa , TANAKA, Naoya
IPC分类号： G10L21/0272 , G10L21/0208 , H04R3/02
CPC分类号： G10L21/028 , G10L21/0272 , H04R3/00 , H04R3/02 , H04R3/14 , H04R2499/13
摘要： A sound source separation device includes a first microphone that picks up a first voice, a second microphone that picks up a second voice, a first crosstalk canceller that removes, from a voice signal of the first microphone, first crosstalk caused when the second voice is picked up by the first microphone, and a second crosstalk canceller that removes, from a voice signal of the second microphone, second crosstalk caused when the first voice is picked up by the second microphone. The first crosstalk canceller uses a voice signal in which the second crosstalk is removed from the voice signal of the second microphone to estimate and calculate a first interference signal indicative of a degree of the first crosstalk, and to remove the calculated first interference signal from the voice signal of the first microphone. The second crosstalk canceller uses a voice signal in which the first crosstalk is removed from the voice signal of the first microphone to estimate and calculate a second interference signal indicative of a degree of the second crosstalk, and to remove the calculated second interference signal from the voice signal of the second microphone.
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公开(公告)号：EP2645740B1
公开(公告)日：2018-05-30
申请号：EP13001515.9
申请日：2013-03-22
申请人： HTC Corporation
摘要： Control method and apparatus for a speaker system and a mobile apparatus are provided. In an embodiment, the control apparatus includes a feedback unit, a compensation unit, and a gain unit. The feedback unit, in response to at least one feedback signal from a speaker, is for generating at least one detected parameter. The compensation unit, in response to a first audio signal, is for generating a second audio signal, wherein the second audio signal is generated selectively by compensation according to a first model for the speaker, a first detected parameter of the at least one detected parameter, the first audio signal, and a gain value. The gain unit, coupled to receive the second audio signal and coupled to receive one or more of the at least one detected parameter, is for outputting the gain value and generating a third audio signal according to the gain value.
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公开(公告)号：EP3304548A1
公开(公告)日：2018-04-11
申请号：EP16848782.5
申请日：2016-07-22
发明人： KIM, Dong-wan , SONG, Myung-suk
IPC分类号： G10L21/0208 , G10L21/02 , H04R3/00 , H04R3/02 , H04R3/04 , H03G3/30 , G10L21/0216 , H04R27/00 , H04S3/00
CPC分类号： G10L21/0208 , G10L21/02 , G10L21/034 , G10L21/0364 , G10L2021/02082 , G10L2021/02166 , H03G3/3005 , H04R3/005 , H04R3/02 , H04R27/00 , H04R2430/01 , H04R2499/11 , H04R2499/15 , H04S3/00 , H04S2400/15
摘要： An electronic device configured to process an audio signal output from a microphone, and an audio processing method thereof are provided. The electronic device includes at least one speaker; at least one microphone; a signal processor configured to process an audio signal being output from the microphone; and a processor configured to control the signal processor to determine first information regarding an output of the speaker by analyzing at least one speaker input signal being input into the speaker and to determine second information regarding a sound source being input into the microphone by analyzing at least one audio signal being output from the microphone, and to process the at least one audio signal according to at least one of the first and second information.
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公开(公告)号：EP3232691A3
公开(公告)日：2018-03-21
申请号：EP17157887.5
申请日：2017-02-24
申请人： ASK Industries GmbH
发明人： Kalinichenko, Victor
CPC分类号： G01H7/00 , H04R3/02 , H04R29/00 , H04R2499/13
摘要： Verfahren zur Ermittlung der Raumimpulsantwort (RIR) eines ein bestimmtes Raumvolumen (2) aufweisenden, insbesondere geschlossenen, Innenraums (3), umfassend folgende Schritte:
- gleichzeitiges Ausgeben wenigstens eines Maximum-Length-Sequence-Signals (MLS-Signals) (5) und wenigstens eines von dem MLS-Signal (5) unterschiedlichen Audiosignals (6) in ein Raumvolumen (2) eines Innenraums (3), dessen Raumimpulsantwort (RIR) zu ermitteln ist, wobei durch die gleichzeitige Ausgabe des wenigstens einen MLS-Signals (5) und des wenigstens Audiosignals (6) ein das wenigstens eine MLS-Signal (5) und das wenigstens eine Audiosignal (6) enthaltendes Kombinationssignal (7) erzeugt wird,
- Ermitteln der Raumimpulsantwort (RIR) des Innenraums (3) aus dem Kombinationssignal (7).摘要翻译： 用于确定具有（2）将一定体积的房间脉冲响应（RIR），在特定的方法关闭时，所述内部空间（3），包括以下步骤： - 至少一个最大长度序列信号的同时分配（MLS）信号（5）和 在的空间体积（6）不同的音频信号的MLS信号（5）中的至少一种（2）的内部（3），房间脉冲响应（RIR）将被确定，其中，通过所述至少一个MLS信号的同时输出（5） 和至少该音频信号（6）的所述至少一个MLS信号（5）和所述至少一个音频信号（6）含有组合信号（7）被产生， - 确定的房间脉冲响应（RIR）的内部（3）从该组合信号（7 ）。
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公开(公告)号：EP2645739B1
公开(公告)日：2018-03-14
申请号：EP12162414.2
申请日：2012-03-30
申请人： NXP B.V.
摘要： A microphone circuit has a clip detection circuit which detects when an analogue to digital converter output has reached a threshold. A variable attenuator is controlled based on the clip detection circuit output. The feedback is thus based on the ADC output level, and the processing of this signal can be implemented without requiring baseband processing of the signal - it can simply be based on a state of the ADC output. An overrule function is also provided so that the clip detection AGC control can be inhibited or controlled differently.
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公开(公告)号：EP3291581A2
公开(公告)日：2018-03-07
申请号：EP17187337.5
申请日：2017-08-22
申请人： Oticon A/S
发明人： KURIGER, Martin , KUENZLE, Bernhard , GUO, Meng
CPC分类号： H04R25/505 , H04M9/082 , H04R3/02 , H04R25/453 , H04R2430/03
摘要： A hearing device, e.g. a hearing aid, comprises a forward path for processing an electric signal representing sound including a) an input unit for receiving or providing an electric input signal representing sound, b) a signal processing unit, c) an output transducer for generating stimuli perceivable as sound to a user, d) a feedback detection unit configured to detect feedback or evaluate a risk of feedback via an acoustic or mechanical or electrical feedback path from said output transducer to said input unit and comprising d1) a magnitude and phase analysis unit for repeatedly determining magnitude, Mag, and phase, Phase, of said electric input signal and further parameters based thereon, and d2) a feedback conditions and detection unit configured to check criteria for magnitude and phase feedback condition, respectively, based on said values, and to provide a feedback detection signal indicative of feedback or a risk of feedback.
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公开(公告)号：EP2816816B1
公开(公告)日：2018-01-17
申请号：EP13173047.5
申请日：2013-06-20
申请人： 2236008 Ontario Inc.
CPC分类号： H04R3/005 , H04R3/02 , H04R2410/07 , H04R2499/11
摘要： In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.
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