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公开(公告)号：US11735201B2
公开(公告)日：2023-08-22
申请号：US17851945
申请日：2022-06-28
Inventor： Masanari Miyamoto
IPC: G10L21/0232 , G10L15/06 , H04R3/00 , H04R1/40 , G10L21/0216
CPC classification number: G10L21/0232 , G10L15/063 , H04R1/406 , H04R3/005 , G10L2015/0631 , G10L2021/02166
Abstract: A speech processing device includes a processor. The processor performs operations including: detecting a single-talk state based on a speech signal collected by each of microphones, the single-talk state in which any one of persons speaks; estimating a mixing rate indicating a ratio of a speech signal of the main speaking person to a speech signal of another person based on a sound pressure ratio of the speech signals collected by the microphones in the single-talk state of the main speaking person and a sound pressure ratio of the speech signals collected by the plurality of microphones in the single-talk state of the another person; and determining whether suppression of a crosstalk component due to speaking of the another person contained in the speech signal of the main speaking person is necessary based on an estimation result of the mixing rate.
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Patent Agency Ranking
公开(公告)号：US09665904B2
公开(公告)日：2017-05-30
申请号：US14798731
申请日：2015-07-14
Inventor： Shinichi Shigenaga , Ryota Fujii , Hisahiro Tanaka , Koshi Tanaka , Akitoshi Izumi , Masanari Miyamoto , Shinichi Takayama
CPC classification number: G06Q30/0633 , G10L15/26 , G10L25/48 , H04R3/005
Abstract: There is provided an order entry system including: a first microphone that picks up speech regarding order details of a first speaker; a second microphone that picks up speech regarding the order details of a second speaker for checking the order details of the first speaker; a speech recognizer that recognizes the speech regarding the order details of the first speaker which is picked up by the first microphone and the speech regarding the order details of the second speaker which is picked up by the second microphone; and an order data output that displays on a display, a display screen of order data regarding the order details of the first speaker, including a first speech recognition result of the speech regarding the order details of the first speaker and a second speech recognition result of the speech regarding the order details of the second speaker.
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公开(公告)号：US12198686B2
公开(公告)日：2025-01-14
申请号：US17778299
申请日：2020-11-16
Inventor： Masanari Miyamoto , Shinichi Yuzuriha
IPC: G10L21/0208 , G10L15/20 , G10L21/0272
Abstract: A sound crosstalk suppression device includes: a speaker analysis unit configured to analyze a speaker situation in a closed space based on voice signals respectively collected by a plurality of microphones arranged in the closed space; a filter update unit that includes a filter configured to generate a suppression signal of a crosstalk component included in a voice signal of a main speaker, that is configured to update a parameter of the filter, and that is configured to store the updated parameter in a memory; a reset unit configured to reset the parameter of the filter in a case where it is determined that an analysis result of the speaker situation is switched; and a crosstalk suppression unit configured to suppress a crosstalk component by using a suppression signal.
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公开(公告)号：US11676617B2
公开(公告)日：2023-06-13
申请号：US17472171
申请日：2021-09-10
Inventor： Masanari Miyamoto , Naoya Tanaka , Hiromasa Ohashi
IPC: G10L15/20 , G10L21/0208 , G10K11/16
CPC classification number: G10L21/0208 , G10K11/16 , G10K2210/1282
Abstract: An acoustic noise suppressing apparatus includes a sound pickup circuit, a first and second suppression circuits, and an output signal selection circuit. The sound pickup circuit picks up sound. The first suppression circuit processes the sound, in which the first suppression circuit is configured to calculate a first suppression sound signal in which acoustic noise is suppressed from the sound by using a first algorithm suitable for multiple sound sources. The second suppression circuit processes the audio signal in parallel with the first suppression circuit, in which the second suppression circuit is configured to calculate a second suppression sound signal in which acoustic noise is suppressed from the sound signal by using a second algorithm suitable for a single sound source. The output signal selection circuit outputs only one of the first suppression audio signal and the second suppression audio signal.
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公开(公告)号：US11089404B2
公开(公告)日：2021-08-10
申请号：US16751857
申请日：2020-01-24
Inventor： Masanari Miyamoto , Hiromasa Ohashi , Naoya Tanaka
Abstract: A sound processing apparatus includes n number of microphones that are disposed correspondingly to n number of persons and that mainly collect sound signals uttered by respective relevant persons, a filter that suppresses crosstalk components included in a talker sound signal collected by a microphone corresponding to at least one talker using the sound signals collected by the n number of microphones, a parameter updater that updates a parameter of the filter for suppressing the crosstalk components and stores an update result in the memory in a case where a predetermined condition including time at which at least one talker talks is satisfied, and a sound output controller that outputs the sound signals, acquired by subtracting the crosstalk components by the filter from the talker sound signals based on the update result, from a speaker.
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公开(公告)号：US10798247B2
公开(公告)日：2020-10-06
申请号：US16489897
申请日：2018-01-29
Inventor： Masanari Miyamoto , Hiromasa Ohashi , Naoya Tanaka
Abstract: A microphone picks-up voice of a driver. A first echo suppression unit outputs a voice signal after first echo suppression based on a voice signal of the driver and a voice signal after echo suppression in the past (first reference signal) stored in a buffer memory. A second echo suppression unit outputs a voice signal after second echo suppression based on a voice signal of the driver and a voice signal after the echo suppression in the past (second reference signal) stored in a buffer memory. An output signal selector selects one of the voice signals after the first echo suppression or the voice signal after the second echo suppression according to a detection result of the presence or absence of a system variation by a system variation detector, and causes a speaker to output the selected voice signal.
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