-
公开(公告)号：US11937054B2
公开(公告)日：2024-03-19
申请号：US17349589
申请日：2021-06-16
CPC分类号： H04R3/005 , G10L25/78 , H04R1/406 , H04R29/006
摘要： Embodiments described herein provide a combined multi-source time difference of arrival (TDOA) tracking and voice activity detection (VAD) mechanism that is applicable for generic array geometries, e.g., a microphone array that lies on a plane. The combined multi-source TDOA tracking and VAD mechanism scans the azimuth and elevation angles of the microphone array in microphone pairs, based on which a planar locus of physically admissible TDOAs can be formed in the multi-dimensional TDOA space of multiple microphone pairs. In this way, the multi-dimensional TDOA tracking reduces the number of calculations that was usually involved in traditional TDOA by performing the TDOA search for each dimension separately.
-
公开(公告)号：US11800269B2
公开(公告)日：2023-10-24
申请号：US17545456
申请日：2021-12-08
发明人： Brenton Steele
CPC分类号： H04R1/04 , H04R1/1016 , H04R1/265 , H04R29/006
摘要： Described embodiments generally relate to a signal processing device for on ear detection for an earbud. The device comprises a first microphone input for receiving a microphone signal from a first microphone, the first microphone being configured to be positioned within an ear of a user when the earbud is being worn; a second microphone input for receiving a microphone signal from a second microphone, the second microphone being configured to be positioned outside the ear of the user when the earbud is being worn; a signal generator configured to generate a signal for acoustic playback from a speaker configured to be positioned within the earbud; and a processor. The processor is configured to receive at least one first microphone signal from each of the first microphone input and the second microphone input, and compare the first microphone signals to determine the on ear status of the earbud; determine that the on ear status of the earbud cannot be sufficiently determined, generate a signal for acoustic playback from the speaker, receive a second microphone signal from the first microphone input, and compare the second microphone signal to the generated signal to determine the on ear status of the earbud.
-
公开(公告)号：US20190200149A1
公开(公告)日：2019-06-27
申请号：US16204516
申请日：2018-11-29
发明人： Katsuya ABE , Katsumi NAKAGAWA , Hisayuki SASAKI , Ryosuke KITAGO
CPC分类号： H04R29/006 , H04R1/406 , H04R3/005 , H04R2420/07
摘要： In a wireless microphone system, a master device includes a master device control unit that generates a communication table in which a pair of a carrier wave and a slot which are used for communication with m microphone slave devices are set for one frame period, based on a total number of six carrier waves in a DECT system and n slots constituting one frame period of the DECT system, and k wireless processing units that perform communication using the DECT system with corresponding individual microphone slave devices among m microphone slave devices, based on the generated communication table. The k wireless processing units respectively operate synchronously based on the same clock signal.
-
公开(公告)号：US20180342242A1
公开(公告)日：2018-11-29
申请号：US16053337
申请日：2018-08-02
发明人： Janet M. Rice , Peng Liang , Terence W. Kuehn
摘要： Method and systems are provided for interpreting speech data. A method and system for recognizing speech involving a filter module to generate a set of processed audio data based on raw audio data; a translation module to provide a set of translation results for the raw audio data; and a decision module to select the text data that represents the raw audio data. A method for minimizing noise in audio signals received by a microphone array is also described. A method and system of automatic entry of data into one or more data fields involving receiving a processed audio data; and operating a processing module to: search in a trigger dictionary for a field identifier that corresponds to the trigger identifier; identify a data field associated with a data field identifier corresponding to the field identifier; and providing content data associated with the trigger identifier to the identified data field.
-
公开(公告)号：US20180279043A1
公开(公告)日：2018-09-27
申请号：US15996070
申请日：2018-06-01
申请人： Google LLC
CPC分类号： H04R3/005 , H04R5/027 , H04R29/005 , H04R29/006 , H04R2201/401 , H04R2430/20
摘要： A method for auralizing a multi-microphone device. Path information for one or more sound paths using dimensions and room reflection coefficients of a simulated room for one of a plurality of microphones included in a multi-microphone device is determined. An array-related transfer functions (ARTFs) for the one of the plurality of microphones is retrieved. The auralized impulse response for the one of the plurality of microphones is generated based at least on the retrieved ARTFs and the determined path information.
-
公开(公告)号：US10068583B2
公开(公告)日：2018-09-04
申请号：US15916942
申请日：2018-03-09
发明人： Janet M. Rice , Peng Liang , Terence W. Kuehn
IPC分类号： G10L15/04 , G10L19/26 , G10L15/20 , G10L21/02 , G10L25/93 , G10L15/26 , H04M11/10 , H04M3/16 , H04W24/00 , G06F3/00
摘要： Method and systems are provided for interpreting speech data. A method and system for recognizing speech involving a filter module to generate a set of processed audio data based on raw audio data; a translation module to provide a set of translation results for the raw audio data; and a decision module to select the text data that represents the raw audio data. A method for minimizing noise in audio signals received by a microphone array is also described. A method and system of automatic entry of data into one or more data fields involving receiving a processed audio data; and operating a processing module to: search in a trigger dictionary for a field identifier that corresponds to the trigger identifier; identify a data field associated with a data field identifier corresponding to the field identifier; and providing content data associated with the trigger identifier to the identified data field.
-
公开(公告)号：US09992570B2
公开(公告)日：2018-06-05
申请号：US15170924
申请日：2016-06-01
申请人： Google Inc.
CPC分类号： H04R3/005 , H04R5/027 , H04R29/005 , H04R29/006 , H04R2201/401 , H04R2430/20
摘要： A method for auralizing a multi-microphone device. Path information for one or more sound paths using dimensions and room reflection coefficients of a simulated room for one of a plurality of microphones included in a multi-microphone device is determined. An array-related transfer functions (ARTFs) for the one of the plurality of microphones is retrieved. The auralized impulse response for the one of the plurality of microphones is generated based at least on the retrieved ARTFs and the determined path information.
-
公开(公告)号：US09953628B1
公开(公告)日：2018-04-24
申请号：US15475156
申请日：2017-03-31
发明人： Chia-Chung Lin
IPC分类号： G10K11/178 , H04R1/40 , H04R1/08 , H04R3/00 , H04R29/00
CPC分类号： G10K11/178 , G10K2210/1082 , H04R1/083 , H04R1/406 , H04R3/005 , H04R29/006
摘要： A microphone device including a first sound receiving module and a second sound receiving module is provided. The first sound receiving module includes a first output terminal and receives a sound signal to output a first electronic signal through the first output terminal. The second sound receiving module, which disposed adjacent to the first sound receiving module to receive the sound signal, includes a second output terminal and outputs a second electronic signal through the second output terminal accordingly. The first output terminal of the first sound receiving module is coupled to the second output terminal of the second sound receiving module, and the phase of the first electronic signal and the phase of the second electronic signal are inverse to each other.
-
公开(公告)号：US09769582B1
公开(公告)日：2017-09-19
申请号：US15226443
申请日：2016-08-02
发明人： XiaoBin Lin
CPC分类号： H04R29/006 , H04R1/02 , H04R29/005 , H04R29/008 , H04R2499/11
摘要： An example method includes controlling an audio source to generate a test tone, controlling a plurality of audio sensors to sense the test tone simultaneously, receiving an output signal from each audio sensor, and determining an acoustic characteristic of each audio sensor based at least in part on the received output signals. The method also includes determining a difference between the acoustic characteristic and a corresponding reference value, identifying at least one audio sensor for which a difference corresponding to the at least one audio sensor is within a predetermined range of the reference value, and generating a compensation factor of the at least one audio sensor based at least in part on the respective output signal of the at least one audio sensor.
-
公开(公告)号：US20170127178A1
公开(公告)日：2017-05-04
申请号：US15406388
申请日：2017-01-13
申请人： Invensense, Inc.
发明人： Dongqin Yan , Jie Fu , Yang Pan
CPC分类号： H04R3/005 , H03G3/002 , H03G3/3005 , H04R3/002 , H04R29/006 , H04R2201/003 , H04R2430/01
摘要： A distributed automatic level control function is provided, in which information relating to a common automatic level control parameter is transmitted to each of a plurality of microphone devices, wherein the information transmitted to at least one microphone device is derived from an audio sample of at least one different microphone device. Each microphone device produces the common automatic level control parameter based on the information received by the microphone device and applies the common automatic level control parameter produced by the microphone device to a distributed automatic level controller of the microphone device.
-
-
-
-
-
-
-
-
-
搜索结果
273 条记录 (耗时 0.035 秒)
