AUDIO MODULES WITH FINS TO REDUCE ACOUSTIC NOISE DUE TO AIRFLOW

    公开(公告)号:US20240073591A1

    公开(公告)日:2024-02-29

    申请号:US17895984

    申请日:2022-08-25

    Applicant: Apple Inc.

    CPC classification number: H04R1/2888

    Abstract: Implementations of the subject technology provide an acoustic module with fins integrated within the acoustic module to reduce acoustic noise. Airflow caused by pressure changes due to an oscillating diaphragm can be diverted by the fins within the acoustic module. The diverted airflow provide a more uniform airflow distribution within the acoustic module, which leads to a lower peak velocity and less unwanted noise. Fins may include a curved or crescent shape and may be spaced in a certain manner to divert the airflow.

    SPEAKER WITH MULTIPLE RESONATORS
    3.
    发明申请

    公开(公告)号:US20220360886A1

    公开(公告)日:2022-11-10

    申请号:US17315228

    申请日:2021-05-07

    Applicant: Apple Inc.

    Abstract: Aspects of the subject technology relate to electronic devices having speakers with resonators, such as Helmholtz resonators, acoustically coupled to the front volume of the speaker. A speaker module for an electronic device may include multiple resonators, including a first resonator that is acoustically separate from, and at least partially disposed within a second resonator. An acoustic barrier between the first resonator and the second resonator may have a liquid resistance that is different from a liquid resistance that is provided between the first resonator and a back volume of the speaker module and/or between an external environment of the speaker. In one or more implementations, a third resonator may be provided, that is spatially separated from first and second nested and/or adjacent resonators.

    VENTED AUDIO TRANSDUCER
    4.
    发明申请

    公开(公告)号:US20220322011A1

    公开(公告)日:2022-10-06

    申请号:US17220890

    申请日:2021-04-01

    Applicant: Apple Inc.

    Abstract: Implementations of the subject technology provide vented audio transducers such as vented speakers. A speaker assembly may define a first volume under a dome of the speaker and a second volume under a surround of the speaker. The first volume and the second volume may be separated by a speaker structure such as a voice coil. By venting the first volume to the second volume, the disclosed vented speakers can provide a flatter response at high frequencies and lower distortion relative to conventional speakers, by equalizing the pressure under the diaphragm during operation.

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