公开(公告)号：US11368776B1

公开(公告)日：2022-06-21

申请号：US16875584

申请日：2020-05-15

Applicant: Apple Inc.

Inventor： John Woodruff ,  Jing Xia ,  Yacine Azmi

IPC: H04R1/10 ,  H03G3/30 ,  G06F3/16

Abstract: Signal energy in auditory sub-bands of an input audio signal is determined. Sound pressure level, SPL, in those sub-bands is then determined, based on the signal energy and based on sound output sensitivity of the against-the-ear audio device. In one instance, at least first and second gain lookup tables are determined based on a hearing profile of a user of the against-the-ear audio device. Sub-band gains that are to be applied to the input audio signal are determined based on the determined SPL. When the input audio signal is for example telephony the sub-band gains are computed using the first gain lookup table, and when the input audio signal is for example media the sub-band gains are computed using the second gain lookup table. Other aspects are also described and claimed.

公开(公告)号：US11234077B2

公开(公告)日：2022-01-25

申请号：US16880552

申请日：2020-05-21

Applicant: Apple Inc.

Inventor： Nicholas Felton ,  Tyrone Chen ,  Elizabeth Caroline Cranfill ,  Ian M. Fisch ,  Eamon Francis Gilravi ,  Pedro Mari ,  John Woodruff ,  Jing Xia

IPC: G06F17/00 ,  H04R3/04 ,  G06F9/54 ,  G06F3/0482

Abstract: The present disclosure generally relates to user interfaces and techniques for managing audio exposure using a computer system (e.g., an electronic device). In accordance with some embodiments, the electronic device displays a graphical indication of a noise exposure level over a first period of time with an area of the graphical indication that is colored to represent the noise exposure level, the color of the area transitioning from a first color to a second color when the noise exposure level exceeds a first threshold. In accordance with some embodiments, the electronic device displays noise exposure levels attributable to a first output device type and a second output device type and, in response to selecting a filtering affordance, visually distinguishes a set of noise exposure levels attributable to the second output device type.

公开(公告)号：US20200380945A1

公开(公告)日：2020-12-03

申请号：US16871661

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： John Woodruff ,  Tom-Davy W. Saux ,  Vladan Bajic ,  Vasu Iyengar ,  Andrew E. Greenwood ,  Tyrone T. Chen ,  Jakub Mazur ,  Tony S. Verma

IPC: G10K11/178

Abstract: An audio system has an ambient sound enhancement function, in which an against-the-ear audio device having a speaker converts a digitally processed version of an input audio signal into sound. The audio system also has an acoustic noise cancellation (ANC) function that may be combined in various ways with the sound enhancement function, and that may be responsive to voice activity detection. Other aspects are also described and claimed.

公开(公告)号：US11978469B1

公开(公告)日：2024-05-07

申请号：US17866735

申请日：2022-07-18

Applicant: Apple Inc.

Inventor： John Woodruff ,  Yang Lu ,  Tom-Davy W. Saux

IPC: H04R29/00 ,  G10L21/0232 ,  G10L21/0316 ,  G10L25/51 ,  G10L25/84 ,  H04R1/40 ,  H04R3/00

CPC classification number: G10L21/0232 ,  G10L21/0316 ,  G10L25/51 ,  G10L25/84 ,  H04R1/406 ,  H04R3/005 ,  H04R29/005

Abstract: Signal to noise ratio, SNR, is determined in an acoustic ambient environment of an against-the-ear audio device worn by a user, wherein the acoustic ambient environment contains speech by a talker. When the SNR is above a threshold, dynamic range control is applied, as positive gain versus input level, to an audio signal from one or more microphones of the audio device. When the SNR is below the threshold, the dynamic range control applies as zero gain or negative gain to the audio signal. Other aspects are also described and claimed.

公开(公告)号：US11153677B2

公开(公告)日：2021-10-19

申请号：US16871885

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： John Woodruff ,  Tom-Davy W. Saux ,  Vladan Bajic ,  Vasu Iyengar ,  Andrew E. Greenwood ,  Tyrone T. Chen ,  Jakub Mazur ,  Tony S. Verma

IPC: H04R1/10 ,  H03G3/30

Abstract: An audio system has an ambient sound enhancement function, in which an against-the-ear audio device having a speaker converts a digitally processed version of an input audio signal into sound. The input audio signal may be amplified where the amplification may be in accordance with a stored hearing profile of the user (personalized ambient sound enhancement.) The audio system also has an acoustic noise cancellation (ANC) function that may be combined in various ways with the sound enhancement function, and that may be responsive to voice activity detection. Other aspects are also described and claimed.

公开(公告)号：US20200382879A1

公开(公告)日：2020-12-03

申请号：US16872040

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： John Woodruff ,  Yacine Azmi ,  Ian M. Fisch ,  Jing Xia

IPC: H04R25/00

Abstract: A media system and a method of using the media system to accommodate hearing loss of a user, are described. The method includes selecting a personal level-and-frequency dependent audio filter that corresponds to a hearing loss profile of the user. The personal level-and-frequency dependent audio filter can be one of several level-and-frequency-dependent audio filters having respective average gain levels and respective gain contours. An accommodative audio output signal can be generated by applying the personal level-and-frequency dependent audio filter to an audio input signal to enhance the audio input signal based on an input level and an input frequency of the audio input signal. The audio output signal can be played by an audio output device to deliver speech or music that the user perceives clearly, despite the hearing loss of the user. Other aspects are also described and claimed.

公开(公告)号：US20200382859A1

公开(公告)日：2020-12-03

申请号：US16871885

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： John Woodruff ,  Tom-Davy W. Saux ,  Vladan Bajic ,  Vasu Iyengar ,  Andrew E. Greenwood ,  Tyrone T. Chen ,  Jakub Mazur ,  Tony S. Verma

IPC: H04R1/10 ,  H03G3/30

Abstract: An audio system has an ambient sound enhancement function, in which an against-the-ear audio device having a speaker converts a digitally processed version of an input audio signal into sound. The input audio signal may be amplified where the amplification may be in accordance with a stored hearing profile of the user (personalized ambient sound enhancement.) The audio system also has an acoustic noise cancellation (ANC) function that may be combined in various ways with the sound enhancement function, and that may be responsive to voice activity detection. Other aspects are also described and claimed.

公开(公告)号：US11810588B2

公开(公告)日：2023-11-07

申请号：US17589889

申请日：2022-01-31

Applicant: Apple Inc.

Inventor： Carlos M. Avendano ,  John Woodruff ,  Jonathan Huang ,  Mehrez Souden ,  Andreas Koutrouvelis

IPC: H04R29/00 ,  G10L21/028 ,  H04R1/10 ,  G06N20/00 ,  G10L21/0232

CPC classification number: G10L21/028 ,  G06N20/00 ,  G10L21/0232 ,  H04R1/1016 ,  H04R1/1041 ,  H04R1/1083 ,  H04R2420/07

Abstract: Implementations of the subject technology provide systems and methods for providing audio source separation for audio input, such as for audio devices having limited power and/or computing resources. The subject technology may allow an audio device to leverage processing and/or power resources of a companion device that is communicatively coupled to the audio device. The companion device may identify a noise condition of the audio device, select a source separation model based on the noise condition, and provide the source separation model to the audio device. In this way, the audio device can provide audio source separation functionality using a relatively small footprint source separation model that is specific to the noise condition in which the audio device is operated.

公开(公告)号：US11418894B2

公开(公告)日：2022-08-16

申请号：US16872068

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： John Woodruff ,  Yacine Azmi ,  Ian M. Fisch ,  Jing Xia

IPC: H03G7/00 ,  H04R25/00

Abstract: A media system and a method of using the media system to accommodate hearing loss of a user, are described. The method includes selecting a personal level-and-frequency dependent audio filter that corresponds to a hearing loss profile of the user. The personal level-and-frequency dependent audio filter can be one of several level-and-frequency-dependent audio filters having respective average gain levels and respective gain contours. An accommodative audio output signal can be generated by applying the personal level-and-frequency dependent audio filter to an audio input signal to enhance the audio input signal based on an input level and an input frequency of the audio input signal. The audio output signal can be played by an audio output device to deliver speech or music that the user perceives clearly, despite the hearing loss of the user. Other aspects are also described and claimed.

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.