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公开(公告)号：US20250130757A1
公开(公告)日：2025-04-24
申请号：US18824822
申请日：2024-09-04
Applicant: Meta Platforms Technologies, LLC
Inventor： Pablo Francisco Faundez Hoffmann
Abstract: An example method of matching audio inputs to an extended-reality environment, comprises, receiving an audio input from a microphone at a head-worn extended-reality device, and the audio input occurs at a simulated location in a simulated environment. The method also includes, processing the audio input into processed audio by changing the audio based on simulated objects within the simulated environment. The processed audio is configured to be perceived in a manner as if the audio input is being altered by the simulated environment. The example method includes transmitting the processed audio to the device for playback, such that the audio is perceived as being spoken in the simulated environment.
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公开(公告)号：US11832084B2
公开(公告)日：2023-11-28
申请号：US17498544
申请日：2021-10-11
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Pablo Francisco Faundez Hoffmann , Chuming Zhao , David Brokenshire , Chuankeat Kho
CPC classification number: H04S7/304 , G06F3/012 , H04S7/307 , H04R1/1008 , H04R5/02 , H04S7/306 , H04S2400/11 , H04S2420/01
Abstract: Embodiments relate to an audio system that performs equalization of audio signals based on one or more diffuse field head-related transfer functions (HRTFs) and device-specific data. User-specific data and device-specific data (i.e., transducer-specific data) are applied to an acoustic model to predict an acoustic response for a user. An equalization filter is then determined using the acoustic response and the one or more diffuse field HRTFs. The equalization filter is applied to a processed version of an audio signal to create a modified version of the audio signal. The modified version of the audio signal is presented to the user via a transducer array of the audio system. The audio system can further include a microphone assembly that reduces the Helmholtz resonance effect.
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公开(公告)号：US12267645B1
公开(公告)日：2025-04-01
申请号：US18086860
申请日：2022-12-22
Applicant: Meta Platforms Technologies, LLC
Inventor： Pablo Francisco Faundez Hoffmann , Francesco Nesta
IPC: H04R1/40
Abstract: An audio system controls feedback when beamforming an output for production by transducers by generating a beamforming output signal based on audio from a first set and a second set of acoustic sensors. The first set may include acoustic sensors that may experience feedback from the transducers. The second set may exclude the acoustic sensors that cause feedback. The beamforming output from each set are combined as a weighted combination based on a beamforming coefficient that may be dynamically set to increase contribution of the first set until the combined output causes feedback, enabling the total beamforming output to benefit from a larger set of acoustic sensors while avoiding detrimental feedback. The interaural characteristics of the external environment may also be analyzed and the beamforming output modified to increase a difference in the interaural characteristic and thereby increase perception of the beamforming output.
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4.发明公开公开(公告)号：US20240305942A1
公开(公告)日：2024-09-12
申请号：US18120296
申请日：2023-03-10
Applicant: Meta Platforms Technologies, LLC
Inventor： Pablo Francisco Faundez Hoffmann , Syavosh Zadissa , Xiaoxue Li
CPC classification number: H04S7/301 , H04R1/406 , H04R3/005 , H04R2430/21 , H04S2420/01
Abstract: A headset includes multiple pairs of acoustic sensors for capturing audio of a local area surrounding the headset. Each pair of acoustic sensors includes an acoustic sensor on a side of the headset and an additional acoustic sensor on an opposite side of the headset. One pair of acoustic sensors is positioned closer to the ears of a user than other pairs of acoustic sensors. The headset determines a filter for each pair of acoustic sensors that modifies audio captured by the acoustic sensors of a pair. Application of the filter causes audio captured by the pair of acoustic sensors to have sound similar to audio captured at the user's ears. In some embodiments, audio from multiple pairs of acoustic sensors is filtered by corresponding filters then combined.
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公开(公告)号：US20240056763A1
公开(公告)日：2024-02-15
申请号：US18383599
申请日：2023-10-25
Applicant: Meta Platforms Technologies, LLC
Inventor： David Brokenshire , Chuankeat Kho , Pablo Francisco Faundez Hoffmann , Chuming Zhao
CPC classification number: H04S7/304 , G06F3/012 , H04S7/307 , H04S7/306 , H04R1/1008
Abstract: Embodiments relate to an audio system that performs equalization of audio signals based on one or more diffuse field head-related transfer functions (HRTFs) and device-specific data. User-specific data and device-specific data (i.e., transducer-specific data) are applied to an acoustic model to predict an acoustic response for a user. An equalization filter is then determined using the acoustic response and the one or more diffuse field HRTFs. The equalization filter is applied to a processed version of an audio signal to create a modified version of the audio signal. The modified version of the audio signal is presented to the user via a transducer array of the audio system. The audio system can further include a microphone assembly that reduces the Helmholtz resonance effect.
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Patent Agency Ranking
公开(公告)号：US20220394398A1
公开(公告)日：2022-12-08
申请号：US17891888
申请日：2022-08-19
Applicant: Meta Platforms Technologies, LLC
IPC: H04R25/00
Abstract: An in-ear device occludes an ear canal of an ear of a user. The in-ear device is configured to be calibrated such that the user perceives audio content as though the in-ear device is not occluding the ear canal. A transducer of the in-ear device presents audio content, and an inner microphone of the in-ear device detects sound pressure data within the ear canal. A controller of the in-ear device determines a blocked sound pressure at the entrance to the ear canal based on sound pressure data from an outer microphone. The controller generates sound filters custom to the user based in part on the detected sound pressure within the ear canal and the blocked sound pressure at the entrance to the ear canal. The controller adjusts audio content using the sound filter, and the transducer presents the adjusted audio content to the user.
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公开(公告)号：US11792579B2
公开(公告)日：2023-10-17
申请号：US17891888
申请日：2022-08-19
Applicant: Meta Platforms Technologies, LLC
IPC: H04R25/00
CPC classification number: H04R25/505 , H04R25/305 , H04R25/604 , H04R2225/025 , H04R2460/15
Abstract: An in-ear device occludes an ear canal of an ear of a user. The in-ear device is configured to be calibrated such that the user perceives audio content as though the in-ear device is not occluding the ear canal. A transducer of the in-ear device presents audio content, and an inner microphone of the in-ear device detects sound pressure data within the ear canal. A controller of the in-ear device determines a blocked sound pressure at the entrance to the ear canal based on sound pressure data from an outer microphone. The controller generates sound filters custom to the user based in part on the detected sound pressure within the ear canal and the blocked sound pressure at the entrance to the ear canal. The controller adjusts audio content using the sound filter, and the transducer presents the adjusted audio content to the user.
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公开(公告)号：US11470428B2
公开(公告)日：2022-10-11
申请号：US16943517
申请日：2020-07-30
Applicant: Meta Platforms Technologies, LLC
IPC: H04R25/00
Abstract: An in-ear device occludes an ear canal of an ear of a user. The in-ear device is configured to be calibrated such that the user perceives audio content as though the in-ear device is not occluding the ear canal. A transducer of the in-ear device presents audio content, and an inner microphone of the in-ear device detects sound pressure data within the ear canal. A controller of the in-ear device determines a blocked sound pressure at the entrance to the ear canal based on sound pressure data from an outer microphone. The controller generates sound filters custom to the user based in part on the detected sound pressure within the ear canal and the blocked sound pressure at the entrance to the ear canal. The controller adjusts audio content using the sound filter, and the transducer presents the adjusted audio content to the user.
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公开(公告)号：US12094487B2
公开(公告)日：2024-09-17
申请号：US17480740
申请日：2021-09-21
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Pablo Francisco Faundez Hoffmann , Peter Harty Dodds
Abstract: An audio system for spatializing virtual sound sources is described. A microphone array of the audio system is configured to monitor sound in a local area. A controller of the audio system identifies sound sources within the local area using the monitored sound from the microphone array and determines their locations. The controller of the audio system generates a target position for a virtual sound source based on one or more constraints. The one or more constraints include that the target position be at least a threshold distance away from each of the determined locations of the identified sound sources. The controller generates one or more sound filters based in part on the target position to spatialize the virtual sound source. A transducer array of the audio system presents spatialized audio including the virtual sound source content based in part on the one or more sound filters.
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10.发明公开公开(公告)号：US20230224663A1
公开(公告)日：2023-07-13
申请号：US17575452
申请日：2022-01-13
Applicant: Meta Platforms Technologies, LLC
Inventor： Pablo Francisco Faundez Hoffmann , Tetsuro Oishi
CPC classification number: H04S7/303 , H04R3/04 , H04R5/04 , G02B27/017 , H04S2420/01
Abstract: The present disclosure relates to systems, methods, and non-transitory computer-readable media that present spatial audio using the speakers of a wearable audio device and speakers external to the wearable audio device. In particular, in one or more embodiments, the disclosed systems generate spatial audio having a high-frequency component and a low-frequency component. The disclosed systems further generate cross-talk cancellation filters for the low-frequency component of the spatial audio. The disclosed systems can provide the high-frequency component for presentation via speakers of the wearable audio device and the low-frequency component for presentation via the external speakers using the cross-talk cancellation filters. In some cases, the disclosed systems generate the spatial audio or the cross-talk cancellation filters using a personalized interaural display model and/or head-related transfer functions.
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