公开(公告)号：US11074903B1

公开(公告)日：2021-07-27

申请号：US16834487

申请日：2020-03-30

Applicant: Amazon Technologies, Inc.

Inventor： Kuan-Chieh Yen ,  Ali Abdollahzadeh Milani

IPC: G10K11/178 ,  H04R1/10

Abstract: A system and method includes an audio device, such as an earbud or headphones, that includes one or more loudspeakers for outputting audio. The audio device further in includes one or more microphones that are positioned near an ear of a user. An acoustic barrier may be formed between a surface of the device and the ear of the user; properties of this barrier may, however, vary from user to user. The system determines these properties on a per-user basis and compensates for any differences therein.

公开(公告)号：US10972834B1

公开(公告)日：2021-04-06

申请号：US16787580

申请日：2020-02-11

Applicant: Amazon Technologies, Inc.

Inventor： Kuan-Chieh Yen ,  Daniel Wayne Harris ,  Carlo Murgia ,  Taro Kimura

IPC: H04R3/00 ,  H04R1/10

Abstract: This disclosure describes techniques for detecting voice commands from a user of an ear-based device. The ear-based device may include an in-ear facing microphone to capture sound emitted in an ear of the user, and an exterior facing microphone to capture sound emitted in an exterior environment of the user. The in-ear microphone may generate an inner audio signal representing the sound emitted in the ear, and the exterior microphone may generate an outer audio signal representing sound from the exterior environment. The ear-based device may compute a ratio of a power of the inner audio signal to the outer audio signal and may compare this ratio to a threshold. If the ratio is larger than the threshold, the ear-based device may detect the voice of the user. Further, the ear-based device may set a value of the threshold based on a level of acoustic seal of the ear-based device.

公开(公告)号：US11711647B1

公开(公告)日：2023-07-25

申请号：US17197929

申请日：2021-03-10

Applicant: Amazon Technologies, Inc.

Inventor： Kuan-Chieh Yen ,  Daniel Wayne Harris ,  Carlo Murgia ,  Taro Kimura

IPC: H04R3/00 ,  H04R1/10

CPC classification number: H04R3/00 ,  H04R1/1016 ,  H04R2201/107

Abstract: This disclosure describes techniques for detecting voice commands from a user of an ear-based device. The ear-based device may include an in-ear facing microphone to capture sound emitted in an ear of the user, and an exterior facing microphone to capture sound emitted in an exterior environment of the user. The in-ear microphone may generate an inner audio signal representing the sound emitted in the ear, and the exterior microphone may generate an outer audio signal representing sound from the exterior environment. The ear-based device may compute a ratio of a power of the inner audio signal to the outer audio signal and may compare this ratio to a threshold. If the ratio is larger than the threshold, the ear-based device may detect the voice of the user. Further, the ear-based device may set a value of the threshold based on a level of acoustic seal of the ear-based device.

公开(公告)号：US12126957B1

公开(公告)日：2024-10-22

申请号：US17362418

申请日：2021-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Kuan-Chieh Yen ,  Alexander Kanaris

IPC: H04R1/10

CPC classification number: H04R1/1083 ,  H04R2420/07

Abstract: This disclosure describes, in part, techniques to process audio signals to lessen the impact that wind and/or other environmental noise has upon the resulting quality of audio signals output on speaker(s) of wireless earbuds or other headphones. For example, the techniques may determine a level of wind and/or other noise in an environment and may determine how best to process the signals to lessen the impact of the noise, such that one or more users that hear audio based on output of the signals hear higher-quality audio. In some instances, the techniques are able to detect levels of wind in a relatively low-power manner and as part of regular operation of the wireless earbuds or other headphones.

公开(公告)号：US11172285B1

公开(公告)日：2021-11-09

申请号：US16707967

申请日：2019-12-09

Applicant: Amazon Technologies, Inc.

Inventor： Ke Li ,  Alex Kanaris ,  Ludger Solbach ,  Carlo Murgia ,  Kuan-Chieh Yen ,  Tarun Pruthi

IPC: H04R1/10 ,  H04R1/40 ,  H04R3/00

Abstract: This disclosure describes, in part, techniques to process audio signals to lessen the impact that wind and/or other environmental noise has upon the resulting quality of these audio signals. For example, the techniques may determine a level of wind and/or other noise in an environment and may determine how best to process the signals to lessen the impact of the noise, such that one or more users that hear audio based on output of the signals hear higher-quality audio.