公开(公告)号：US20240314511A1

公开(公告)日：2024-09-19

申请号：US18615914

申请日：2024-03-25

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew Lovitt ,  Scott Phillip Selfon ,  Taher Shahbazi Mirzahasanloo ,  Sean Allyn Coffin ,  Nava K Balsam ,  Syavosh Zadissa

IPC: H04S7/00 ,  H04R5/033 ,  H04R5/04 ,  H04S1/00

CPC classification number: H04S7/302 ,  H04R5/033 ,  H04R5/04 ,  H04S1/007

Abstract: A method for audio beam steering, tracking, and audio effects for an immersive reality application is provided. The method includes receiving, from an immersive reality application, a first audio waveform from a first acoustic source to provide to a user of a headset, identifying a perceived direction for the first acoustic source relative to the headset based on a location of the first acoustic source, and providing, to a first speaker in a client device, an audio signal including the first audio waveform, wherein the audio signal includes a time delay and an amplitude of the first audio waveform based on the perceived direction. A non-transitory, computer-readable medium storing instructions which, when executed by a processor, cause a system to perform the above method, and the system, are also provided.

公开(公告)号：US20240096340A1

公开(公告)日：2024-03-21

申请号：US18086555

申请日：2022-12-21

Applicant: Meta Platforms Technologies, LLC

Inventor： Sarmad Aziz Malik ,  Syavosh Zadissa ,  Xiaofei Chen

IPC: G10L21/02

CPC classification number: G10L21/02

Abstract: A system suppresses howl in a device including microphones and speakers, for example, an artificial reality headset. A speaker of the device presents audio content. The audio content presented by the speaker is received by a microphone of the device thereby creating a howl in certain situations. The system detects the presence of the howl in a region of the audio content using an adaptive notch filter. The system suppresses the howl by reducing gain of one or more frequencies of the audio content. The system may detect presence of the howl by monitoring flatness of the signal. The system may detect presence of the howl based on tonality detection based on linear prediction

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

IPC: H04S7/00 ,  H04R1/40 ,  H04R3/00

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.

公开(公告)号：US11943601B2

公开(公告)日：2024-03-26

申请号：US17827414

申请日：2022-05-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew Lovitt ,  Scott Phillip Selfon ,  Taher Shahbazi Mirzahasanloo ,  Sean Allyn Coffin ,  Nava K Balsam ,  Syavosh Zadissa

IPC: H04S7/00 ,  H04R5/033 ,  H04R5/04 ,  H04S1/00

CPC classification number: H04S7/302 ,  H04R5/033 ,  H04R5/04 ,  H04S1/007

Abstract: A method for audio beam steering, tracking, and audio effects for an immersive reality application is provided. The method includes receiving, from an immersive reality application, a first audio waveform from a first acoustic source to provide to a user of a headset, identifying a perceived direction for the first acoustic source relative to the headset based on a location of the first acoustic source, and providing, to a first speaker in a client device, an audio signal including the first audio waveform, wherein the audio signal includes a time delay and an amplitude of the first audio waveform based on the perceived direction. A non-transitory, computer-readable medium storing instructions which, when executed by a processor, cause a system to perform the above method, and the system, are also provided.

公开(公告)号：US20230050966A1

公开(公告)日：2023-02-16

申请号：US17827414

申请日：2022-05-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew Lovitt ,  Scott Phillip Selfon ,  Taher Shahbazi Mirzahasanloo ,  Sean Allyn Coffin ,  Nava K Balsam ,  Syavosh Zadissa

IPC: H04S7/00 ,  H04S1/00 ,  H04R5/033 ,  H04R5/04

Abstract: A method for audio beam steering, tracking, and audio effects for an immersive reality application is provided. The method includes receiving, from an immersive reality application, a first audio waveform from a first acoustic source to provide to a user of a headset, identifying a perceived direction for the first acoustic source relative to the headset based on a location of the first acoustic source, and providing, to a first speaker in a client device, an audio signal including the first audio waveform, wherein the audio signal includes a time delay and an amplitude of the first audio waveform based on the perceived direction. A non-transitory, computer-readable medium storing instructions which, when executed by a processor, cause a system to perform the above method, and the system, are also provided.