AUTOMATIC SPATIAL CALIBRATION FOR A LOUDSPEAKER SYSTEM USING ARTIFICIAL INTELLIGENCE AND NEARFIELD RESPONSE

    公开(公告)号:US20230032280A1

    公开(公告)日:2023-02-02

    申请号:US17558380

    申请日:2021-12-21

    Abstract: One embodiment provides a method of automatic spatial calibration. The method comprises estimating one or more distances from one or more loudspeakers to a listening area based on a machine learning model and one or more propagation delays from the one or more loudspeakers to the listening area. The method further comprises estimating one or more incidence angles of the one or more loudspeakers relative to the listening area based on the one or more propagation delays. The method further comprises applying spatial perception correction to audio reproduced by the one or more loudspeakers based on the one or more distances and the one or more incidence angles. The spatial perception correction comprises delay and gain compensation that corrects misplacement of any of the one or more loudspeakers relative to the listening area.

    Auto-equalization, in-room low-frequency sound power optimization

    公开(公告)号:US10469046B2

    公开(公告)日:2019-11-05

    申请号:US15806991

    申请日:2017-11-08

    Abstract: One embodiment provides a device comprising a speaker driver, a microphone configured to obtain a measurement of a near-field sound pressure of the speaker driver, and a controller. The controller is configured to determine a velocity of a diaphragm of the speaker driver, and automatically calibrate sound power levels of audio reproduced by the speaker driver based on the velocity and the measurement of the near-field sound pressure to automatically adjust the sound power levels to an acoustic environment of the device.

    AUTO-EQUALIZATION, IN-ROOM LOW-FREQUENCY SOUND POWER OPTIMIZATION

    公开(公告)号:US20180262175A1

    公开(公告)日:2018-09-13

    申请号:US15806991

    申请日:2017-11-08

    Abstract: One embodiment provides a device comprising a speaker driver, a microphone configured to obtain a measurement of a near-field sound pressure of the speaker driver, and a controller. The controller is configured to determine a velocity of a diaphragm of the speaker driver, and automatically calibrate sound power levels of audio reproduced by the speaker driver based on the velocity and the measurement of the near-field sound pressure to automatically adjust the sound power levels to an acoustic environment of the device.

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