SPECTROGRAM BASED TIME ALIGNMENT FOR INDEPENDENT RECORDING AND PLAYBACK SYSTEMS

    公开(公告)号:US20250048050A1

    公开(公告)日:2025-02-06

    申请号:US18790528

    申请日:2024-07-31

    Abstract: One embodiment provides a computer-implemented method that includes sending a stimulus signal to a loudspeaker. A measurement signal is received via a microphone. The stimulus signal is transformed into a stimulus time-frequency representation. The measured signal is transformed into a measured time-frequency representation. At least one frequency value is selected between the stimulus time-frequency representation and the measured time-frequency representation. Correlation analysis is performed using the selected at least one frequency value. Based on the correlation analysis, a statistical mode is determined to produce a start-time of the stimulus signal.

    Automatic delay settings for loudspeakers

    公开(公告)号:US11653164B1

    公开(公告)日:2023-05-16

    申请号:US17563540

    申请日:2021-12-28

    Inventor: Allan Devantier

    CPC classification number: H04S7/301 H04R3/12 H04S7/302

    Abstract: One embodiment provides a computer-implemented method that includes receiving a trigger sound from a primary listening location. The trigger sound being received at multiple speakers in a synchronous network at different times. The trigger sound is recognized at the multiple speakers. A respective relative delay is determined based on a time differential function that determines time differences. Sound quality for the multiple speakers is improved based on the respective relative delay for each of the multiple speakers.

    Ultra slim transducer
    15.
    发明授权

    公开(公告)号:US11503411B2

    公开(公告)日:2022-11-15

    申请号:US16936875

    申请日:2020-07-23

    Inventor: Allan Devantier

    Abstract: One embodiment provides a slim acoustic transducer with a diaphragm that is substantially centered on a vertical axis. A first top plate is substantially perpendicular to the vertical axis. The first top plate houses a first upper magnet. A first bottom plate is substantially perpendicular to the vertical axis. The first bottom plate houses a first lower magnet. A voice coil has a height parallel to the vertical axis. The voice coil is at least partially disposed within the first top plate and at least partially disposed within the first bottom plate.

    ULTRA SLIM TRANSDUCER
    17.
    发明申请

    公开(公告)号:US20220030358A1

    公开(公告)日:2022-01-27

    申请号:US16936875

    申请日:2020-07-23

    Inventor: Allan Devantier

    Abstract: One embodiment provides a slim acoustic transducer with a diaphragm that is substantially centered on a vertical axis. A first top plate is substantially perpendicular to the vertical axis. The first top plate houses a first upper magnet. A first bottom plate is substantially perpendicular to the vertical axis. The first bottom plate houses a first lower magnet. A voice coil has a height parallel to the vertical axis. The voice coil is at least partially disposed within the first top plate and at least partially disposed within the first bottom plate.

    Ultra slim transducer
    18.
    发明授权

    公开(公告)号:US11102585B2

    公开(公告)日:2021-08-24

    申请号:US16588905

    申请日:2019-09-30

    Abstract: One embodiment provides a slim acoustic transducer with a diaphragm including a hole that is substantially centered on a vertical axis of the diaphragm. The hole has a first horizontal width. A voice coil has a ring shape that is disposed at least partially within the hole and substantially centered on the vertical axis. The ring shape has an outer and inner horizontal width. The outer horizontal width is smaller than or equal to the first horizontal width of the hole. A column structure is disposed at least partially within the ring shape and substantially centered on the vertical axis. The column structure has a second horizontal width that is smaller than or equal to the inner horizontal width of the ring shape. The column structure includes an upper magnet, a middle plate disposed below the upper magnet and a lower magnet disposed below the middle plate.

    MODIFYING AN APPARENT ELEVATION OF A SOUND SOURCE UTILIZING SECOND-ORDER FILTER SECTIONS

    公开(公告)号:US20190335289A1

    公开(公告)日:2019-10-31

    申请号:US16505071

    申请日:2019-07-08

    Abstract: One embodiment provides a method comprising determining an actual elevation of a sound source. The actual elevation is indicative of a first location at which the sound source is physically located relative to a first listening reference point. The method further comprises determining a desired elevation for a portion of an audio signal. The desired elevation is indicative of a second location at which the portion of the audio signal is perceived to be physically located relative to the first listening reference point. The desired elevation is different from the actual elevation. The method further comprises, based on the actual elevation, the desired elevation and the first listening reference point, modifying the audio signal, such that the portion of the audio signal is perceived to be physically located at the desired elevation during reproduction of the audio signal via the sound source.

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