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Systems and methods for self-calibrating audio listening devices

A technology for calibrating circuits and calibrating sequences, which is applied in hearing devices with active noise cancellation, hearing aids, frequency response correction, etc., and can solve problems such as not being able to fully ensure long-term audio quality and affecting user listening experience

Pending Publication Date: 2022-06-03
GOOGLE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These audio devices may undergo changes during their lifecycle, altering original specifications and affecting the user's listening experience over time
A one-time calibration performed during generation is not sufficient to ensure long-term audio quality

Method used

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  • Systems and methods for self-calibrating audio listening devices
  • Systems and methods for self-calibrating audio listening devices
  • Systems and methods for self-calibrating audio listening devices

Examples

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Embodiment Construction

[0022] Various embodiments of the present disclosure will be described with reference to earphones. The term "headphones" as used herein is not intended to be limited to earphones only, but may be interchanged with the terms "headphones" or "earbuds" in other audio listening devices that include at least a on-ear), on-ear (circum-ear) and / or in-ear speakers.

[0023] Basic headphones typically include one or more speakers (eg, miniature speakers) to generate and emit (eg, play) sound waves. Headphones with noise cancellation capabilities such as active noise cancellation (ANC) include one or more speakers and one or more embedded microphones (eg, an external microphone and an internal microphone) to capture noise for noise reduction. To achieve a premium listening experience, speakers and microphones are designed to perform according to specific operating specifications.

[0024] To ensure quality, manufacturers can calibrate the headset during production. After the headset...

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PUM

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Abstract

A self-calibration system may include a housing including a first calibration circuit configured to cooperate with a second calibration circuit to perform a calibration sequence of an active noise reduction (ANC) headphone. The housing further includes a cavity configured to receive an ANC headset, where the profile of the cavity simulates the ANC headset in the user's ear. The housing further includes: a calibration microphone coupled to the first calibration circuit and configured to measure calibration sound waves from the ANC headphone; and a calibration speaker configured to emit a calibration sound wave to the ANC headphone.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Patent Application No. 16 / 664,728, filed October 25, 2019, entitled "SYSTEM AND METHOD FOR SELF-CALIBRATING AUDIO LISTENING DEVICES" and priority, this application is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure generally relates to audio listening devices. More specifically, for example, it relates to systems and methods for self-calibrating audio listening devices. Background technique [0004] Personal listening devices such as headphones, earbuds, and headphones are calibrated during manufacture at the production line to ensure that such devices meet requirements such as frequency response, total harmonic distortion, and uplink and downlink noise reduction. design specification. Noise-canceling audio devices rely on the performance of embedded speakers and microphones to produce high-quality noise reduction. These audi...

Claims

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Application Information

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IPC IPC(8): H04R29/00
CPCH04R29/001H04R2460/01H04R1/1041H04R3/04H04R2420/07H04R1/1016H04R1/1083H04R25/305
Inventor 歌温迪·肯南刘文森杰文·蒂蒙斯
Owner GOOGLE LLC