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公开(公告)号：US12081952B2
公开(公告)日：2024-09-03
申请号：US17111130
申请日：2020-12-03
申请人： Intel Corporation
发明人： Shantanu D. Kulkarni , Jeff Ku , Sumod Cherukkate , Tongyan Zhai , Srikanth Potluri , Jordan E. Maslov
IPC分类号： H04R3/04 , G10K11/175 , H04R1/22 , H05K7/20
CPC分类号： H04R3/04 , G10K11/175 , G10K11/1752 , H04R1/222 , H05K7/20
摘要： Systems, apparatus, articles of manufacture, methods are disclosed to reshape fan noise of a fan of an electronic device. An example system includes a microphone to detect a first acoustic signal including fan noise. The example system also includes a processor to: identify a tone in the first acoustic signal; and determine a gain to add to the first acoustic signal to mask the tone. In addition, the example system includes a sound transducer to present a second acoustic signal including the gain.
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公开(公告)号：US20240107215A1
公开(公告)日：2024-03-28
申请号：US17970549
申请日：2022-10-20
发明人： Kuei-Yuan Lin , Hung-Yue Chang , Hsiu-Hung Yeh
摘要： A microphone front chamber structure is adapted to be disposed on a front side of a voice reception hole of a microphone unit. The microphone front chamber structure includes a shell and a microphone holder. The shell has a first hole. The microphone holder is disposed in the shell and has a second hole corresponding to the first hole. The first hole and the second hole form a front chamber. The first hole has a first width at a position farthest away from the microphone holder. The second hole includes first and second sections arranged along an axis. On the axis, the first section has a tapered width along the axis and away from the shell. The second section has a second width constant along the axis. The first width is greater than the second width. A voice reception device including the microphone front chamber structure is also provided.
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公开(公告)号：US11856358B1
公开(公告)日：2023-12-26
申请号：US17533117
申请日：2021-11-23
发明人： Rodger Cloud , Stephen Sank
摘要： A novel phantom-powered FET (field effect transistor) circuit for audio application is disclosed. In one embodiment of the invention, a novel phantom-powered FET preamplifier gain circuit can minimize undesirable sound distortions and reduce the cost of producing a conventional preamplifier gain circuit. Moreover, in one embodiment of the invention, one or more novel rounded-edge magnets may be placed close to a ribbon of a ribbon microphone, wherein the one or more novel rounded-edge magnets reduce or minimize reflected sound wave interferences with the vibration of the ribbon during an operation of the ribbon microphone. Furthermore, in one embodiment of the invention, a novel backwave chamber operatively connected to a backside of the ribbon can minimize acoustic pressure, anomalies in frequency responses, and undesirable phase cancellation and doubling effects.
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公开(公告)号：US20230370767A1
公开(公告)日：2023-11-16
申请号：US17820614
申请日：2022-08-18
申请人： Acer Incorporated
发明人： Kuei-Ting TAI , Jia-Ren CHANG
CPC分类号： H04R1/2846 , H04R1/2853 , H04R1/083 , H04R1/222
摘要： A sound-receiving system is provided, including: a sound-guiding tube, a microphone, and an acoustic perforated sheet. The sound-guiding tube has a winding path, including a first end, a second end, and a sound-receiving hole. The second end is opposite the first end. The sound-receiving hole is disposed at the first end. The microphone is abutted against the second end. The acoustic perforated sheet is disposed adjacent to the sound-receiving hole and is a distance away from the sound-receiving hole. The sound-receiving hole is offset from the microphone. The acoustic perforated sheet reduces and filters the frequency response of a specific frequency range of the microphone.
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公开(公告)号：US20230328415A1
公开(公告)日：2023-10-12
申请号：US18023525
申请日：2021-08-06
CPC分类号： H04R1/02 , H04R1/08 , H04R1/222 , H04R2201/029 , H04R2499/11
摘要： A microphone apparatus including: a casing; a composite material located within the casing, the composite material including at least in part conductive particles, the composite material configured to alter an internal impedance based on a surface disturbance transmitted by an acoustic wave, and wherein the microphone apparatus is configured to be coupled to a surface that transmitted the acoustic wave.
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公开(公告)号：US11683634B1
公开(公告)日：2023-06-20
申请号：US17100281
申请日：2020-11-20
发明人： Jun Yang
摘要： A system that suppresses a plurality of interferences of different types in a received audio signal. The system comprises one or more microphones and an audio controller. The one or more microphones are configured to detect the audio signal. The audio controller applies an interference estimation algorithm to the audio signal to generate an attenuation coefficient for each of the plurality of interferences of different types. The audio controller applies the attenuation coefficients to the audio signal to generate an interference-suppressed audio signal in which the plurality of interferences of different types is suppressed. The audio controller determines a time domain signal based on the interference-suppressed audio signal to provide to an end user.
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公开(公告)号：US11678108B2
公开(公告)日：2023-06-13
申请号：US17542630
申请日：2021-12-06
申请人： GoPro, Inc.
发明人： Erich Tisch
IPC分类号： H04R1/28 , G06F16/901 , H04R1/22
CPC分类号： H04R1/2884 , G06F16/9017 , H04R1/222 , H04R2410/07
摘要： An image capture device with dynamic wind noise compression tuning techniques is described. A technique includes detecting of the presence of wind noise by measuring coherence between at least two microphones. For a compressor, adjusting a default compression threshold and default compression parameters based on the coherence measurements. For each microphone, applying by the compressor the adjusted compression parameters when an audio signal is above the adjusted compression threshold and applying the default compression parameters when the audio signal is below the adjusted compression threshold.
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公开(公告)号：US11659344B2
公开(公告)日：2023-05-23
申请号：US17329262
申请日：2021-05-25
申请人： YAMAHA CORPORATION
发明人： Dai Hashimoto , Takayuki Watanabe
CPC分类号： H04R29/004 , H04R1/222
摘要： A sound signal processing method includes receiving a sound signal, generating an early reflection sound control signal that reproduces an early reflection sound and a reverberant sound control signal that reproduces a reverberant sound from the sound signal, controlling a volume of the sound signal and distributing the sound signal to generate a direct sound control signal, and mixing the direct sound control signal, the early reflection sound control signal that reproduces a direct sound, and the reverberant sound control signal to generate an output signal.
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公开(公告)号：US20190251983A1
公开(公告)日：2019-08-15
申请号：US16026078
申请日：2018-07-03
发明人： Hung-Chi Lin , Mao-Hung Lin , Syue-Yu Jhang , Yi-Lin Hsieh
IPC分类号： G10L21/0208 , H04R1/22 , H04R3/00
CPC分类号： G10L21/0208 , G10L2021/02087 , G10L2021/02166 , H04R1/222 , H04R3/005
摘要： An audio processing apparatus and an audio processing method are provided. The audio processing apparatus includes a microphone array, a processor, and an audio signal processor. The microphone array is configured to provide an external audio signal having a first sampling frequency. The external audio signal includes a first audio signal and a second audio signal. The processor provides a first setting command and a second setting command according to the external audio signal and the second audio signal. The audio signal processor generates the second audio signal having a second sampling frequency according to the first setting command, adjusts the second sampling frequency of the second audio signal to the first sampling frequency according to the second setting command, and separates the first audio signal in the external audio signal according to the second audio signal having the first sampling frequency.
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公开(公告)号：US20180367887A1
公开(公告)日：2018-12-20
申请号：US16012556
申请日：2018-06-19
申请人： Cubic Corporation
发明人： Tom Vilhelmsen
CPC分类号： G07C9/00007 , G06K7/1095 , G07B15/02 , G10L19/018 , H04L63/0853 , H04M1/6008 , H04R1/222 , H04R29/004
摘要： Systems, methods, and devices for determining a frequency of a received audio signal. A device may include a microphone, a speaker, and a processor configured to perform operations including receiving, using the microphone, a first audio signal having a predetermined frequency. The operations may also include, for each test frequency of a plurality of test frequencies and for each test phase of a plurality of test phases, generating a second audio signal having the test frequency and the test phase, outputting, using the speaker, the second audio signal, receiving, using the microphone, a combined audio signal being a combination of the first audio signal and the second audio signal, determining an amplitude of the combined audio signal, and determining that the predetermined frequency is within a threshold range of the test frequency when the amplitude of the combined audio signal is below a threshold.
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