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公开(公告)号：US20230164478A1
公开(公告)日：2023-05-25
申请号：US18049620
申请日：2022-10-25
发明人： Chengqian ZHANG , Jinbo ZHENG , Le XIAO , Fengyun LIAO , Xin QI
IPC分类号： H04R1/10 , G10K11/178
CPC分类号： H04R1/1083 , G10K11/17857 , G10K2210/1081 , H04R2460/01
摘要： An open acoustic device (100) may include a fixing structure (120) configured to fix the acoustic device (100) near an ear of a user without blocking an ear canal of the user; a first microphone array (130) configured to acquire environmental noise (410); a signal processor (140) configured to: determine, based on the environmental noise, a primary route transfer function (420) between the first microphone array (130) and the ear canal of the user; estimate, based on the environmental noise and the primary route transfer function, a noise signal (430) at the ear canal of the user; and generate, based on the noise signal at the ear canal of the user, a noise reduction signal (440); and a speaker (150) configured to output, according to the noise reduction signal, a noise reduction acoustic wave (450), the noise reduction acoustic wave being configured to eliminate the noise signal.
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公开(公告)号：US20240038257A1
公开(公告)日：2024-02-01
申请号：US18370387
申请日：2023-09-19
发明人： Le XIAO , Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10L25/78
摘要： A voice activity detection method and system and a voice enhancement method and system are provided. A voice presence probability of a target voice signal present in microphone signals may be determined by calculating a linear correlation between a signal subspace where the microphone signals are located and a target subspace where the target voice signal is located. The voice enhancement method and system may be used to calculate filter coefficients based on the voice presence probability, so as to perform voice enhancement on the microphone signals. The calculation accuracy of the voice presence probability is improved, and the voice enhancement effect is also improved.
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公开(公告)号：US20230292036A1
公开(公告)日：2023-09-14
申请号：US18318673
申请日：2023-05-16
发明人： Chengqian ZHANG , Jinbo ZHENG , Le XIAO , Fengyun LIAO , Xin QI
IPC分类号： H04R1/10 , G10K11/178
CPC分类号： H04R1/1083 , G10K11/17857 , H04R2460/01 , G10K2210/1081
摘要： An open acoustic device (100) may include a fixing structure (120) configured to fix the acoustic device (100) near an ear of a user without blocking an ear canal of the user; a first microphone array (130) configured to acquire environmental noise (410); a signal processor (140) configured to: determine, based on the environmental noise, a primary route transfer function (420) between the first microphone array (130) and the ear canal of the user; estimate, based on the environmental noise and the primary route transfer function, a noise signal (430) at the ear canal of the user; and generate, based on the noise signal at the ear canal of the user, a noise reduction signal (440); and a speaker (150) configured to output, according to the noise reduction signal, a noise reduction acoustic wave (450), the noise reduction acoustic wave being configured to eliminate the noise signal.
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公开(公告)号：US20220223131A1
公开(公告)日：2022-07-14
申请号：US17657354
申请日：2022-03-30
发明人： Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10K11/178 , G06F3/01 , H04R1/10
摘要： A system for reducing noise for a user includes a first detector configured to generate a first noise signal, wherein the first noise signal is a representation of a first noise that is transmitted to the user through a first sound pathway, and a second detector configured to generate a second noise signal, wherein the second noise signal indicates a second noise perceived by the user. The system also includes a processor configured to determine a noise correction signal based on the first noise signal and/or the second noise signal, and a speaker configured to generate a sound for reducing the noise based on the noise correction signal.
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公开(公告)号：US20240071355A1
公开(公告)日：2024-02-29
申请号：US18504121
申请日：2023-11-07
发明人： Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10K11/178 , G06F3/01 , H04R1/10
CPC分类号： G10K11/17815 , G06F3/015 , H04R1/1083 , H04R2460/13
摘要： A system for reducing noise for a user includes a first detector configured to generate a first noise signal, wherein the first noise signal is a representation of a first noise that is transmitted to the user through a first sound pathway, and a second detector configured to generate a second noise signal, wherein the second noise signal indicates a second noise perceived by the user. The system also includes a processor configured to determine a noise correction signal based on the first noise signal and/or the second noise signal, and a speaker configured to generate a sound for reducing the noise based on the noise correction signal.
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公开(公告)号：US20230360664A1
公开(公告)日：2023-11-09
申请号：US18354715
申请日：2023-07-19
发明人： Le XIAO , Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10L21/0264 , G10L25/21
CPC分类号： G10L21/0264 , G10L25/21
摘要： The present disclosure provides a method for voice enhancement, including: obtaining a first signal and a second signal of a target voice, the first signal being a signal of the target voice collected based on a first position, and the second signal being a signal of the target voice collected based on a second position; determining a first coefficient by processing, based on a position of the target voice, the first position, and the second position, the first signal and the second signal; determining, based on the first signal and the second signal, a plurality of parameters related to a plurality of sound source directions; determining, based on the plurality of parameters and the position of the target voice, a second coefficient; and obtaining a voice-enhanced first output voice signal corresponding to the target voice by processing the first signal and/or the second signal.
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公开(公告)号：US20230317093A1
公开(公告)日：2023-10-05
申请号：US18330472
申请日：2023-06-07
发明人： Le XIAO , Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10L21/0232
CPC分类号： G10L21/0232
摘要： The embodiments of the present disclosure provide a method and system for voice enhancement, including: obtaining a first signal and a second signal of a target voice, the first signal and the second signal being voice signals of the target voice at different voice collection positions; determining a target signal-to-noise ratio (SNR) of the target voice based on the first signal or the second signal; determining a processing mode for the first signal and the second signal based on the target SNR; and processing the first signal and the second signal based on the determined processing mode to obtain a voice-enhanced output voice signal corresponding to the target voice.
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公开(公告)号：US20240078991A1
公开(公告)日：2024-03-07
申请号：US18508417
申请日：2023-11-14
发明人： Jinbo ZHENG , Chengqian ZHANG , Le XIAO , Fengyun LIAO , Xin QI
IPC分类号： G10K11/178 , H04R1/10
CPC分类号： G10K11/17817 , H04R1/1008 , H04R1/1083 , H04R2460/01
摘要： The present disclosure discloses an acoustic device and a method for determining a transfer function thereof. The acoustic device includes a sound production unit, a first detector, a processor, and a fixing structure. The sound production unit is configured to generate a first sound signal based on a noise reduction control signal. The first detector is configured to obtain a first residual signal including a residual noise signal formed by superposition of an environmental noise and the first sound signal at a location of the first detector. The processor is configured to estimate a second residual signal at a target spatial location that is closer to the ear canal than the first detector, and update the noise reduction control signal based on the second residual signal. The fixing structure is configured to place the acoustic device at a location near a user's ear but not blocking the ear canal.
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公开(公告)号：US20240071358A1
公开(公告)日：2024-02-29
申请号：US18501230
申请日：2023-11-03
发明人： Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10K11/178 , G10L21/038
CPC分类号： G10K11/17854 , G10K11/17881 , G10L21/038 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , G10K2210/3056
摘要： A noise reduction system is provided. The noise reduction system may include a sub-band noise sensor, a plurality of sub-band noise reduction modules, and an output module. The sub-band noise sensor may be configured to detect a noise and generate a plurality of sub-band noise signals in response to the detected noise. Each of the plurality of sub-band noise signals may have a distinctive sub-band of the frequency band of the noise. Each of the sub-band noise reduction modules may be configured to receive one of the sub-band noise signals from the sub-band noise sensor and generate a sub-band noise correction signal for reducing the received sub-band noise signal. The output module may be configured to receive the sub-band noise correction signals and output a noise correction signal for reducing the noise based on the sub-band noise correction signals.
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公开(公告)号：US20230317048A1
公开(公告)日：2023-10-05
申请号：US18332746
申请日：2023-06-11
发明人： Le XIAO , Jinbo ZHENG , Chengqian ZHANG , Fengyun LIAO , Xin QI
IPC分类号： G10K11/178 , H04R1/40 , H04R3/00 , H04R1/10
CPC分类号： G10K11/17823 , H04R1/406 , H04R3/005 , G10K11/17873 , H04R1/1008 , H04R1/105 , H04R1/1066 , G10K2210/3023 , H04R2460/13 , G10K2210/3056 , G10K2210/1081 , H04R2460/09 , H04R2460/11
摘要： The present disclosure provides an acoustic device including a microphone array, a processor, and at least one speaker. The microphone array may be configured to acquire an environmental noise. The processor may be configured to estimate a sound field at a target spatial position using the microphone array. The target spatial position may be closer to an ear canal of a user than each microphone in the microphone array. The processor may be configured to generate a noise reduction signal based on the environmental noise and the sound field estimation of the target spatial position. The at least one speaker may be configured to output a target signal based on the noise reduction signal. The target signal may be used to reduce the environmental noise. The microphone array may be arranged in a target area to minimize an interference signal from the at least one speaker to the microphone array.
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