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

IPC: H04S7/00 ,  G06F3/01

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.

公开(公告)号：US12200469B2

公开(公告)日：2025-01-14

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

IPC: H04R5/02 ,  G06F3/01 ,  H04S7/00 ,  H04R1/10

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.

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

IPC: H04S7/00 ,  G06F3/01 ,  H04R1/10 ,  H04R5/02

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.