公开(公告)号：US20240365040A1

公开(公告)日：2024-10-31

申请号：US18622543

申请日：2024-03-29

Applicant: Apple Inc.

Inventor： Ashok Masilamani ,  David M. Fischer ,  John Woodruff ,  Jonathan D. Sheaffer ,  Sanket S. Dave ,  Deepak Iyer ,  Andrew W. Malta ,  Erik D. Hornberger

IPC: H04R1/10 ,  G10K11/00 ,  G10L21/0208 ,  G10L21/028 ,  G10L25/84 ,  H04S7/00

CPC classification number: H04R1/1016 ,  G10K11/002 ,  G10L21/0208 ,  G10L21/028 ,  G10L25/84 ,  H04S7/304 ,  H04R2460/13 ,  H04S2400/15

Abstract: A conversation detector processes microphone signals and other sensor signals of a headphone to declare a conversation and configures a filter block to activate a transparency audio signal. It then declares an end to the conversation based on processing one or more of the microphone signals and the other sensor signals, and in response deactivates the transparency audio signal. The conversation detector monitors an idle duration in which an OVAD and a TVAD are both or simultaneously indicating no activity and declares the end to the conversation in response to the idle duration being longer than an idle threshold. Other aspects are also described and claimed.

公开(公告)号：US11812194B1

公开(公告)日：2023-11-07

申请号：US16904342

申请日：2020-06-17

Applicant: Apple Inc.

Inventor： James W. Vandyke ,  Nikolas T. Vitt ,  Sean A. Ramprashad ,  Neal D. Evans ,  Jonathan D. Sheaffer

IPC: H04N7/15 ,  H04L9/40 ,  G02B27/01 ,  H04L65/4038 ,  G06F3/01 ,  H04L12/18

CPC classification number: H04N7/157 ,  G02B27/017 ,  G06F3/013 ,  H04L12/1822 ,  H04L63/0428 ,  H04L65/4038

Abstract: A method performed by a processor of an electronic device. The method presents a computer-generated reality (CGR) setting including a first user and several other users. The method obtains, from a microphone, an audio signal that contains speech of the first user. The method obtains, from a sensor, sensor data that represents a physical characteristic of the first user. The method determines, based on the sensor data, whether to initiate a private conversation between the first user and a second user of the other users, and in accordance with a determination to initiate the private conversation, initiates the private conversation by providing the audio signal to the second user.

公开(公告)号：US11726161B1

公开(公告)日：2023-08-15

申请号：US17464559

申请日：2021-09-01

Applicant: Apple Inc.

Inventor： Christopher T. Eubank ,  Martin E. Johnson ,  Daniel K. Boothe ,  Jonathan D. Sheaffer

IPC: G01S3/808 ,  G06F16/68 ,  H04R3/00 ,  H04S7/00

CPC classification number: G01S3/8083 ,  G06F16/686 ,  H04R3/005 ,  H04S7/301

Abstract: Disclosed are techniques for a multimedia device with audio and video capturing capability to identify an audio device based on acoustic playback signal if the audio device cannot be identified from captured video. The multimedia device may assemble a list of candidate audio devices that are a possible match for the observed audio device from a database of previously recognized audio devices and may transmit commands to the candidate audio devices to play acoustic identification signals. The acoustic identification signals may be audible sound or ultrasonic tone sequences with embedded identification information unique to each audio device. The multimedia device may record and analyze the acoustic identification signals received from any of the candidate audio devices to construct metrics to select the most likely candidate for the observed audio device. The metrics may include time of flight, direction of arrival, received amplitude, direct-to-reverberant ratio (DRR) of the acoustic identification signals.

公开(公告)号：US11631393B1

公开(公告)日：2023-04-18

申请号：US17469255

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Soenke Pelzer ,  David E. Romblom ,  Dirk Schroeder ,  Jonathan D. Sheaffer

IPC: G10K15/08

Abstract: Ray tracing is performed with sound sources and a listener position in a listening environment, to generate impulse responses associated with each of the sound sources. The impulse responses are combined to form a combined impulse response. One or more filters are determined, each corresponding to the sound sources, based on the combined impulse response and the impulse responses. Each filter serves as a correction factor that holds unique acoustic information for the sound source that the filter is associated with. The combined impulse response and the filters can be applied to one or more audio signals that contain the sound sources, resulting in audio having reverberation that is tailored to the various sound sources. Other aspects are described and claimed.

公开(公告)号：US20220279305A1

公开(公告)日：2022-09-01

申请号：US17677808

申请日：2022-02-22

Applicant: Apple Inc.

Inventor： Jonathan D. Sheaffer ,  Martin E. Johnson ,  Andrew P. Bright

IPC: H04S7/00 ,  G10L25/21 ,  H04R1/40 ,  H04R3/00 ,  H04R1/10 ,  H04R5/033 ,  G10L25/60 ,  H04R5/04

Abstract: Disclosed are systems and methods for automatically transitioning between communication modes of wearable audio output devices based solely on acoustic analysis. The audio output devices may operate in one of three electroacoustic modes. In the transparency mode, an audio output device may pass through the speech signal of a nearby user. In the peer-to-peer mode, the audio output device may establish a direct low-latency radio frequency (RF) link to another audio output device. In the telephony mode, the audio output device may communicate with another audio output device using networked telephony. The disclosed methods and systems perform acoustic analysis of the near-field speech signal of a local wearer of the audio output device and the far-field speech signal of a remote talker to determine the best mode for the audio output device to use and to seamlessly transition between the modes as the acoustic environment between the wearers changes.

公开(公告)号：US20220076662A1

公开(公告)日：2022-03-10

申请号：US17525801

申请日：2021-11-12

Applicant: Apple Inc.

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

IPC: G10L15/08 ,  H04L29/06 ,  H04R1/10

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：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：US11227623B1

公开(公告)日：2022-01-18

申请号：US16868360

申请日：2020-05-06

Applicant: Apple Inc.

Inventor： Nikolas T. Vitt ,  Christopher T. Eubank ,  Jonathan D. Sheaffer ,  Tomlinson Holman

IPC: G10L25/51 ,  G10L15/00 ,  H04R3/04 ,  H04R3/00 ,  H04R5/04 ,  H04R5/033 ,  H04R5/027 ,  G06F3/01 ,  H04R3/12

Abstract: Audio processing with audio transparency can include receiving a user content audio signal and receiving a microphone signal. The microphone signal can contain sensed sound of a user environment. Strength of the sensed sound can be increased based on strength of the user content audio signal, to reduce a masking of the sensed sound during playback. The sensed sound and the user content audio signal can be combined in a composite output audio signal used to drive a speaker. Other aspects are also described and claimed.

公开(公告)号：US11190896B1

公开(公告)日：2021-11-30

申请号：US16560418

申请日：2019-09-04

Applicant: Apple Inc.

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

IPC: H04S7/00 ,  H04R1/40 ,  H04R3/00 ,  H04R5/027 ,  H04R5/04 ,  H04R5/033

Abstract: An audio system and a method of using the audio system to determine an interaural head-related transfer function (HRTF) parameter, are described. The audio system can generate binaural recordings using microphones that are worn by a user in everyday scenarios. The audio system can measure interaural parameter values of selected segments of the recordings, and the measurements can be accumulated over time. The interaural HRTF parameter can be estimated based on the measurements. The interaural HRTF parameter can be used to adapt a generic HRTF to generate an individualized HRTF for the user. Other aspects are also described and claimed.

公开(公告)号：US11115773B1

公开(公告)日：2021-09-07

申请号：US16560485

申请日：2019-09-04

Applicant: Apple Inc.

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

IPC: H04R5/04 ,  G06T7/70 ,  H04R5/033 ,  H04S7/00

Abstract: An audio system and a method of using the audio system to generate a head-related transfer function (HRTF) map, are described. The audio system can determine one or more HRTF and corresponding HRTF locations along an azimuthal path of an azimuth extending around a head of a user. The HRTFs or HRTF locations can be measured, and other HRTFs or HRTF locations can be interpolated or extrapolated. The HRTF map can include the HRTFs assigned to HRTF locations along the azimuth. HRTFs from the HRTF map are used to render spatial audio to the user. Other aspects are also described and claimed.