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公开(公告)号：US20220159379A1
公开(公告)日：2022-05-19
申请号：US17532962
申请日：2021-11-22
IPC分类号： H04R5/00 , H04S3/02 , G10L19/26 , G10L19/02 , G10L19/032 , G10L19/008 , G10L19/16 , H04S5/00
摘要： A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.
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公开(公告)号：US11290820B2
公开(公告)日：2022-03-29
申请号：US16903125
申请日：2020-06-16
申请人： Apple Inc.
IPC分类号： G01C21/36 , H04R5/04 , G10L21/00 , H04R5/00 , G06F3/16 , G10L17/22 , G10L15/22 , G01C21/00 , G06F16/68 , G06F16/432 , G06F16/44 , G01C21/34 , G06F3/04815 , G06F3/04845 , G06F3/04883 , G10L15/08
摘要： A method of providing navigation on an electronic device when the display screen is locked. The method receives a verbal request to start navigation while the display is locked. The method identifies a route from a current location to a destination based on the received verbal request. While the display screen is locked, the method provides navigational directions on the electronic device from the current location of the electronic device to the destination. Some embodiments provide a method for processing a verbal search request. The method receives a navigation-related verbal search request and prepares a sequential list of the search results based on the received request. The method then provides audible information to present a search result from the sequential list. The method presents the search results in a batch form until the user selects a search result, the user terminates the search, or the search items are exhausted.
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公开(公告)号：US11277691B2
公开(公告)日：2022-03-15
申请号：US16757234
申请日：2018-10-12
申请人： Google LLC
摘要： Disclosed is a device for controlling a dual-mode Bluetooth low energy multimedia device, the dual-mode BLE multimedia device including a first sound system and a second sound system which are arranged to simultaneously stream an input multimedia stream, the first and second sound systems being respectively associated with at least one first Bluetooth multimedia device and at least one Bluetooth multimedia device. Also disclosed is a dual-mode Bluetooth low energy multimedia device, a method, a computer program and a non-transitory computer-readable storage medium.
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公开(公告)号：US11277519B2
公开(公告)日：2022-03-15
申请号：US17113053
申请日：2020-12-06
申请人： Glen A. Norris , Philip Scott Lyren
发明人： Glen A. Norris , Philip Scott Lyren
摘要： Methods and apparatus assist listeners in distinguishing between electronically generated binaural sound and physical environment sound while the listener wears a wearable electronic device that provides the binaural sound to the listener. The wearable electronic device generates a visual alert or audio alert when the electronically generated binaural sound occurs.
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公开(公告)号：US11272307B2
公开(公告)日：2022-03-08
申请号：US16986996
申请日：2020-08-06
发明人： Huijun Wang
摘要： A method for controlling a recording volume, includes: determining an adjustment gain; and calibrating at least one voice interaction apparatus based on the adjustment gain, to make the at least one voice interaction apparatus have a same recording volume under a same sound pressure level.
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公开(公告)号：US11178484B2
公开(公告)日：2021-11-16
申请号：US16909952
申请日：2020-06-23
申请人： Biamp Systems, LLC
IPC分类号： H04R5/00 , H04R1/40 , G10L21/0216 , H04R3/00
摘要： An example method of operation may include initializing a microphone array in a defined space to receive one or more sound instances based on a preliminary beamform tracking configuration, detecting the one or more sound instances within the defined space via the microphone array, modifying the preliminary beamform tracking configuration, based on a location of the one or more sound instances, to create a modified beamform tracking configuration, and saving the modified beamform tracking configuration in a memory of a microphone array controller.
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17.发明授权公开(公告)号：US11172288B1
公开(公告)日：2021-11-09
申请号：US17334922
申请日：2021-05-31
发明人： Gopal Prasad Mathur
摘要： An active acoustics management system for the loudspeaker back-enclosure, including a first loudspeaker having a front side and a back side connected by side walls, the front facing in a first direction, is presented. An enclosure surrounds a portion of the first loudspeaker, such that the enclosure is open about the front side of the first loudspeaker and is closed about the side walls and the back side of the loudspeaker. A second loudspeaker is disposed within the enclosure behind the first loudspeaker, the second loudspeaker being oriented to output waveforms in the first direction, wherein the second loudspeaker is adapted to output waveforms in the first direction thereby to cancel at least some waveforms emanating from the back side of the first loudspeaker, using active control strategies.
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公开(公告)号：US11109177B2
公开(公告)日：2021-08-31
申请号：US16934651
申请日：2020-07-21
摘要： An exemplary acoustics simulation system selects, from an impulse response library, an impulse response that corresponds to a subspace of an extended reality world. Based on the selected impulse response, the acoustics simulation system generates audio data customized to the subspace of the extended reality world. Additionally, the acoustics simulation system provides the generated audio data for simulating acoustics of the extended reality world as part of a presentation of the extended reality world. Corresponding methods and systems are also disclosed.
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公开(公告)号：US11102605B2
公开(公告)日：2021-08-24
申请号：US16658545
申请日：2019-10-21
申请人： YAMAHA CORPORATION
发明人： Yuji Ikegaya
摘要： An audio signal processing method includes selecting a channel group of at least two channels according to a predetermined reference, from among audio signals of at least three channels; and controlling a gain of the audio signal of each channel of the selected channel group, according to a volume level of the audio signal of each channel of the channel group.
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公开(公告)号：US11057548B2
公开(公告)日：2021-07-06
申请号：US16162959
申请日：2018-10-17
IPC分类号： H04N5/225 , H01F5/02 , H01F41/064 , H04N5/232 , H01F41/098 , H01F41/096 , H01F27/30 , H01F27/32 , H04R5/00 , H01F7/16
摘要： A coil unit may include coil holding member configured to hold a coil; and a coil held by the coil holding member and formed by a conducting wire in a wound state. A direction perpendicular to a length direction of the conducting wire is a thickness direction of the coil. The coil holding member may include an abutment surface configured to abut against one end surface in the thickness direction of the coil, a convex unit protruding from the abutment surface and around which the conducting wire is wound, and a coil pressing unit extending from a front end surface of the convex unit and configured to press the other end surface in the thickness direction of the coil.
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