公开(公告)号：US12010494B1

公开(公告)日：2024-06-11

申请号：US16557907

申请日：2019-08-30

Applicant: Apple Inc.

Inventor： Darius A. Satongar ,  Martin E. Johnson ,  Peter Victor Jupin ,  Jonathan D. Sheaffer ,  Gaëtan R. Lorho

IPC: G06F17/00 ,  H04R1/10 ,  H04R3/04 ,  H04R5/04 ,  H04S7/00

CPC classification number: H04R5/04 ,  H04R1/1008 ,  H04R3/04 ,  H04S7/304 ,  H04S7/307 ,  H04S2420/01

Abstract: An audio system and a method of using the audio system to determine one or more of a head-related transfer function (HRTF) or a headphone equalization (HpEQ) filter for a user, are described. The audio system can determine an acoustic transfer function that relates an output signal detected by a microphone of a headphone worn by the user to an in input signal played by a speaker of the headphone. The acoustic transfer function corresponds to sound reflecting from a pinna of the user between the speaker and the microphone, and accordingly, the acoustic transfer function is user-specific. The user-specific acoustic transfer function can be used to determine the HRTF or the HpEQ filter for the user. Other aspects are also described and claimed.

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：US11315277B1

公开(公告)日：2022-04-26

申请号：US16560171

申请日：2019-09-04

Applicant: Apple Inc.

Inventor： Peter Victor Jupin ,  Yacine Azmi ,  Martin E. Johnson ,  Darius A. Satongar ,  Jonathan D. Sheaffer

IPC: G06T7/60 ,  G06T17/10 ,  H04S7/00 ,  H04R5/033 ,  H04R5/04

Abstract: A device and a method of using the device to determine a user-specific head-related transfer function (HRTF), are described. The device can determine first geometric data corresponding to visible features of a pinna of a user in an image, and second geometric data corresponding to hidden features of the pinna obfuscated by the visible features in the image. The first geometric data and the second geometric data are combined in a geometric model that describes a shape of the pinna, and the user-specific HRTF is determined based on the geometric model. The user-specific HRTF is used to render spatial audio to the user. Other aspects are also described and claimed.

公开(公告)号：US11012774B2

公开(公告)日：2021-05-18

申请号：US16575178

申请日：2019-09-18

Applicant: Apple Inc.

Inventor： Jonathan D. Sheaffer ,  Joshua D. Atkins ,  Peter A. Raffensperger ,  Symeon Delikaris Manias

IPC: H04R3/00 ,  G10L19/08 ,  H04R5/04 ,  H04S7/00 ,  H04R1/02 ,  G10L21/0216

Abstract: A method for producing a target directivity function that includes a set of spatially biased HRTFs. A set of left ear and right ear head related transfer functions (HRTFs) are selected. The left ear and right ear head HRTFs are multiplied with an on-camera emphasis function (OCE), to produce the spatially biased HRTFs. The OCE may be designed to shape the sound profile of the HRTFs to provide emphasis in a desired location or direction that is a function of the specific orientation of the device as it is being used to make a video recording. Other aspects are also described and claimed.

公开(公告)号：US20210084414A1

公开(公告)日：2021-03-18

申请号：US17107613

申请日：2020-11-30

Applicant: Apple Inc.

Inventor： Martin E. Johnson ,  Afrooz Family ,  Darius A. Satongar ,  Jonathan D. Sheaffer ,  Lance F. Reichert ,  Peter V. Jupin

IPC: H04R5/04 ,  H04R5/033

Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.

公开(公告)号：US10728690B1

公开(公告)日：2020-07-28

申请号：US16538655

申请日：2019-08-12

Applicant: Apple Inc.

Inventor： Darius A. Satongar ,  Jonathan D. Sheaffer ,  Martin E. Johnson ,  Peter V. Jupin

IPC: H04S7/00 ,  H04S3/00

Abstract: An iterative method for finding which user characteristic data should be used for pruning a database of available HRTFs before selecting an HRTF from the database for a target user (target listener.) The selected HRTF is expected to be the one that is more suitable for target user. This is also referred to as having “personalized” the HRTF selection process for the target user. This is not about computing a suitable HRTF but rather how to use the user characteristic data to improve the chances of selecting the most appropriate one from a database of available HRTFs. Other aspects are also described and claimed.

公开(公告)号：US10390131B2

公开(公告)日：2019-08-20

申请号：US15721654

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Jonathan D. Sheaffer ,  Darius A. Satongar ,  Joshua D. Atkins ,  Martin E. Johnson

IPC: H04R5/00 ,  H04R3/00 ,  H04R1/40 ,  H04R1/08 ,  H04R1/04

Abstract: A microphone array included in a portable electronic device is used to generate various virtual studio microphones by combining one or more microphone signals to produce one or more acoustic pickup beams. An error is determined in a position of the microphone array relative to an audio source to be recorded. An interface is displayed to instruct a user on repositioning the microphone array relative to the instrument and the instrument is recorded using the repositioned microphone array.

公开(公告)号：US12080278B2

公开(公告)日：2024-09-03

申请号：US18053282

申请日：2022-11-07

Applicant: Apple Inc.

Inventor： Robert D. Silfvast ,  Neal D. Evans ,  Nikolas T. Vitt ,  Jonathan D. Sheaffer

IPC: G10L15/08 ,  H04L9/40 ,  H04R1/10

CPC classification number: G10L15/083 ,  H04L63/18 ,  H04R1/1091 ,  G10L2015/088 ,  H04R2460/13

Abstract: A method for routing audio content through an electronic device that is to be worn by a user. The method obtains a communication and determines whether the communication is private. In response to determining that the communication is private, the method drives a bone conduction transducer of the electronic device with an audio signal associated with the communication. In response to determining that the communication is not private, however, the method drives a speaker of the electronic device with the audio signal.

公开(公告)号：US12069431B2

公开(公告)日：2024-08-20

申请号：US17749068

申请日：2022-05-19

Applicant: Apple Inc.

Inventor： Jonathan D. Sheaffer

IPC: H04R23/00 ,  G01H9/00 ,  G06F3/16 ,  H04R3/00

CPC classification number: H04R23/008 ,  G01H9/002 ,  G06F3/165 ,  H04R3/005

Abstract: Aspects of the subject technology provide for joint processing of signals from acoustic microphones and signals from vibration sensors that directly or remotely sense vibrations of the source of the sound itself. The vibration sensors may include remote vibration sensors such as a light-based microphone, which may be implemented as an optical microphone. Joint processing of the signals may include detecting a sound from the source in the signals from the acoustic microphone by selecting a portion of the signals from the acoustic microphone based on the signals from the vibration sensor.

公开(公告)号：US11997463B1

公开(公告)日：2024-05-28

申请号：US17737896

申请日：2022-05-05

Applicant: Apple Inc.

Inventor： Jonathan D. Sheaffer ,  Yelena V. Menyaylenko

IPC: H04R5/04 ,  G06N20/00 ,  H04R5/02 ,  H04R5/033

CPC classification number: H04R5/04 ,  G06N20/00 ,  H04R5/02 ,  H04R5/033 ,  H04R2430/20

Abstract: A method performed by a programmed processor, the method including receiving an input noise signal, generating, using a machine learning model that has an input based on the input noise signal, a mono audio signal that includes a sound and a spatial parameter for the mono audio signal, and generating spatial audio data by spatially encoding the mono audio signal according to the spatial parameter.