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公开(公告)号：US12101624B2
公开(公告)日：2024-09-24
申请号：US18146890
申请日：2022-12-27
发明人： Adrian Celestinos Arroyo , Yuan Li
摘要： One embodiment provides a computer-implemented method that includes acquiring, via at least one microphone, sound pressure data from a loudspeaker in a room. The sound pressure data is input into an artificial intelligence (AI) model. The AI model automatically estimates, without user interaction, at least one of energy average (EA) in a listening area or total sound power (TSP) produced by the loudspeaker. The AI model is trained prior to automatically estimating the at least one of the EA in the listening area or the TSP produced by the loudspeaker.
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公开(公告)号：US12094487B2
公开(公告)日：2024-09-17
申请号：US17480740
申请日：2021-09-21
摘要： An audio system for spatializing virtual sound sources is described. A microphone array of the audio system is configured to monitor sound in a local area. A controller of the audio system identifies sound sources within the local area using the monitored sound from the microphone array and determines their locations. The controller of the audio system generates a target position for a virtual sound source based on one or more constraints. The one or more constraints include that the target position be at least a threshold distance away from each of the determined locations of the identified sound sources. The controller generates one or more sound filters based in part on the target position to spatialize the virtual sound source. A transducer array of the audio system presents spatialized audio including the virtual sound source content based in part on the one or more sound filters.
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公开(公告)号：US12081929B2
公开(公告)日：2024-09-03
申请号：US16954926
申请日：2018-12-21
发明人： Koray Ozcan , Miikka Vilermo , Antero Tossavainen
摘要： An apparatus (1) and electronic device (23), the apparatus comprising: a microphone arrangement (3); and a sensing arrangement (5) comprising two dimensional material (17); wherein the microphone arrangement (3) is configured to transduce a sound signal into an audio output signal and the sensing arrangement (5) is configured to transduce a parameter into an electrical output signal.
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4.发明公开公开(公告)号：US20240289089A1
公开(公告)日：2024-08-29
申请号：US18583230
申请日：2024-02-21
发明人： Michael Lester , Iris Lorente
CPC分类号： G06F3/165 , H04R5/027 , H04S7/302 , H04S2400/11 , H04S2400/15
摘要： Techniques for predicted audio immersion related to audio capture devices within an audio environment are discussed herein. Examples may include receiving audio stream inputs associated with audio capture devices positioned within one or more audio capture areas of an audio environment, where the audio environment comprises the one or more audio capture areas and one or more non-audio capture areas. Additionally, the audio stream inputs are transformed into respective audio feature sets. The respective audio feature sets are then input to a hybrid neural network model configured to generate respective augmented signal path data vectors for the respective audio stream inputs. Respective neural network paths of the hybrid neural network model may process one or more of the respective audio feature sets based on respective digital signal processing augmentation networks integrated within the hybrid neural network model.
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5.发明公开公开(公告)号：US20240276147A1
公开(公告)日：2024-08-15
申请号：US18568462
申请日：2022-02-08
发明人： SHUAI JI
CPC分类号： H04R3/005 , H04R5/027 , H04R2499/11
摘要： The present technique makes it possible to satisfactorily collect sound coming from a predetermined direction using a non-directional microphone.
An audio signal conversion unit converts an audio signal obtained by collecting sound by the non-directional microphone into a unidirectional audio signal. For example, the audio signal conversion unit is configured with a deep neural network. In this case, for example, the deep neural network is trained to learn to minimize a difference between an acoustic feature amount extracted from an audio signal converted by the deep neural network and an acoustic feature amount extracted from a unidirectional audio signal obtained by collecting sound by a unidirectional microphone.-
公开(公告)号：US12063489B2
公开(公告)日：2024-08-13
申请号：US17571483
申请日：2022-01-08
发明人： Dietmar Ruwisch
CPC分类号： H04R3/04 , G10L21/0216 , H04R3/005 , H04R5/027 , H04R5/04 , G10L2021/02165
摘要： A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of said microphones and represented by analog-to-digital converted time-domain signals provided by each of said microphones into corresponding complex-valued frequency-domain microphone signals each having a frequency component value for each of a plurality of frequency components, calculating, for each of the plurality of frequency components, real-valued Wind Reduction Factors as minima of the reciprocal and non-reciprocal frequency components of a plurality of real-valued Deviation Spectra if said minimum is below a preselected deviation threshold and set to one if said minimum is above or equal to said deviation threshold, and for each of the plurality of frequency components, forming a frequency-domain wind-reduced output signal.
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公开(公告)号：US20240147179A1
公开(公告)日：2024-05-02
申请号：US18407598
申请日：2024-01-09
发明人： Lasse Laaksonen
摘要： An apparatus configured to: generate at least one ambience component representation, wherein the ambience component representation comprises: at least one respective diffuse background audio signal, and at least one parameter, wherein the at least one parameter is associated with the at least one respective diffuse background audio signal; and output the at least one ambience component representation, wherein the at least one ambience component representation is configured to be used in rendering an ambience audio signal, based on the at least one respective diffuse background audio signal, the at least one parameter of the at least one ambience component representation, and at least one of: a rendering position, or a rendering direction, relative to a defined position within an audio field.
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公开(公告)号：US11974108B2
公开(公告)日：2024-04-30
申请号：US17660498
申请日：2022-04-25
申请人： WISYCOM S.R.L.
发明人： Enzo Frigo , Massimo Polo
摘要： A tracking and communication system for microphones (10), comprising a plurality of microphones (10) installed in one or more zones (14) of contiguous or separate environments. Each microphone (10) is equipped with a radio unit which is connected to the microphone (10). The tracking and communication system comprises also a network of radio transceivers (11), which are positioned in said one or more zones (14) and which are connected wirelessly or through one or more cable one to each other, being configured to receive signals from said microphones (10) and to transmit to them a plurality of data, and a command and control unit (12), to which said radio transceivers (11) are connected wirelessly or via cables.
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公开(公告)号：US20240107259A1
公开(公告)日：2024-03-28
申请号：US18458965
申请日：2023-08-30
申请人： Apple Inc.
CPC分类号： H04S7/307 , H04R3/005 , H04R5/027 , H04S3/008 , H04S2400/01 , H04S2400/11 , H04S2400/15 , H04S2420/11
摘要： A device may include microphones worn on a head of a user. The device may include a processor, configured to obtain microphone signals from the plurality of microphones. The processor may attenuate breathing sound from the user by processing the microphone signals, resulting in attenuated microphone signals. The processor may render one or more output audio channels based on the plurality of attenuated microphone signals.
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公开(公告)号：US11890168B2
公开(公告)日：2024-02-06
申请号：US18186972
申请日：2023-03-21
IPC分类号： H04R5/027 , G10L15/22 , G10L25/51 , A61F11/14 , H04R3/00 , H04R5/033 , G10K11/178 , H04S7/00 , H04R1/10 , H04S1/00
CPC分类号： A61F11/145 , G10K11/17823 , G10K11/17881 , G10L15/22 , G10L25/51 , H04R1/1008 , H04R1/1083 , H04R3/005 , H04R5/027 , H04R5/0335 , H04S1/007 , H04S7/304 , G10K11/17825 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , G10K2210/3044 , G10K2210/3046 , H04R2201/107 , H04R2460/01 , H04S2400/11 , H04S2400/13 , H04S2400/15 , H04S2420/01
摘要： A hearing protection and situational awareness system includes a wearable device, speakers, one or more beamformers, a microphone array, and a computation unit. The system generates a three-dimensional (3D) binaural sound for enhanced situational awareness; provides hearing protection by active noise cancelation; provides hearing enhancement by automatic gain control; and performs background noise reduction and cancelation. The system performs automated sound detection, identification, and localization, with automated voice assistance, and facilitates clear two-way communications. Each beamformer(s) outputs a sound track associated with a sound captured by the microphone array in a direction(s) of an acoustic beam pattern(s). The computation unit combines filtered sound tracks generated using head-related transfer function (HRTF) filters into left and right sound channels to drive the speaker(s) in left and right hearing members of the wearable device, respectively, thereby generating a 3D binaural sound including cues of the sound source directions.
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