公开(公告)号：US11841899B2

公开(公告)日：2023-12-12

申请号：US16899019

申请日：2020-06-11

Applicant: Apple Inc.

Inventor： Jonathan D. Sheaffer ,  Symeon Delikaris Manias ,  Gaetan R. Lorho ,  Peter A. Raffensperger ,  Eric A. Allamanche ,  Frank Baumgarte ,  Dipanjan Sen ,  Joshua D. Atkins ,  Juha O. Merimaa

IPC: G06F16/683 ,  G06F16/174 ,  H04R1/40 ,  H04R3/00

CPC classification number: G06F16/683 ,  G06F16/1744 ,  H04R1/406 ,  H04R3/005 ,  H04R2410/00

Abstract: A device with microphones can generate microphone signals during an audio recording. The device can store, in an electronic audio data file, the microphone signals, and metadata that includes impulse responses of the microphones. Other aspects are described and claimed.

公开(公告)号：US20210211821A1

公开(公告)日：2021-07-08

申请号：US17128910

申请日：2020-12-21

Applicant: Apple Inc.

Inventor： Gaetan R. Lorho ,  Jonathan D. Sheaffer ,  Symeon Delikaris Manias ,  Frank Baumgarte

IPC: H04S7/00 ,  H04R1/40 ,  H04R3/00 ,  H04R5/027 ,  H04R3/04 ,  H04R29/00

Abstract: Transfer functions can describe responses of microphones or ears to sounds at different locations on a sphere. The transfer functions can be compressed by determining, based on transfer functions, a) one or more basis transfer functions, and b) spherical harmonics coefficients that describe variations of the transfer functions with respect to spherical coordinates. Other aspects are described and claimed.

公开(公告)号：US11252525B2

公开(公告)日：2022-02-15

申请号：US17128910

申请日：2020-12-21

Applicant: Apple Inc.

Inventor： Gaetan R. Lorho ,  Jonathan D. Sheaffer ,  Symeon Delikaris Manias ,  Frank Baumgarte

IPC: H04S7/00 ,  H04R1/40 ,  H04R3/00 ,  H04R3/04 ,  H04R29/00 ,  H04R5/027

Abstract: Transfer functions can describe responses of microphones or ears to sounds at different locations on a sphere. The transfer functions can be compressed by determining, based on transfer functions, a) one or more basis transfer functions, and b) spherical harmonics coefficients that describe variations of the transfer functions with respect to spherical coordinates. Other aspects are described and claimed.

公开(公告)号：US20180359294A1

公开(公告)日：2018-12-13

申请号：US15621890

申请日：2017-06-13

Applicant: Apple Inc.

Inventor： Suzanne C. Brown ,  Gaetan R. Lorho ,  Jonathan D. Sheaffer

IPC: H04L29/06 ,  H04R1/10 ,  G10L17/00 ,  G10L19/008 ,  H04S3/00 ,  H04R3/00

CPC classification number: H04L65/403 ,  G10L17/005 ,  G10L19/008 ,  H04R1/1008 ,  H04R3/005 ,  H04S3/008 ,  H04S7/305 ,  H04S2400/01

Abstract: In one aspect herein, a pre-processor receives audio signals for a conference call from individual callers, each of the audio signals associated with corresponding metadata, analyzes the metadata, and associates each of the audio signals with a spatial position in a virtual representation of the conference call based on the analyzation of the metadata. A spatial arrangement processor generates a binaural room impulse response associated with the spatial position of each of the audio signals to filter the received audio signals to account for the spatial position associated with each of the audio signals and to account for the effect of the virtual representation of the conference call. A head-tracking controller tracks an orientation of a listener's head using a headset. A binaural renderer produces multi-channel audio data for playback on the headset according to the orientation of the listener's head and the binaural room impulse response associated with the spatial position of each of the audio signals.