Playback device calibration
    23.
    发明授权

    公开(公告)号:US11877139B2

    公开(公告)日:2024-01-16

    申请号:US17804372

    申请日:2022-05-27

    申请人: Sonos, Inc.

    发明人: Timothy Sheen

    IPC分类号: H04S7/00 G06F3/16 G10K11/178

    摘要: Systems and methods for calibrating a playback device include (i) outputting first audio content; (ii) capturing audio data representing reflections of the first audio content within a room in which the playback device is located; (iii) based on the captured audio data, determining an acoustic response of the room; (iv) connecting to a database comprising a plurality of sets of stored audio calibration settings, each set associated with a respective stored acoustic room response of a plurality of stored acoustic room responses; (v) querying the database for a stored acoustic room response that corresponds to the determined acoustic response of the room in which the playback device is located; and (vi) applying to the playback device a particular set of stored audio calibration settings associated with the stored acoustic room response that corresponds to the determined acoustic response of the room in which the playback device is located.

    Connected speaker comprising a LAN interface and a WPAN interface

    公开(公告)号:US11863966B2

    公开(公告)日:2024-01-02

    申请号:US17124052

    申请日:2020-12-16

    发明人: Gabriel Bouvigne

    IPC分类号: H04R5/02 H04S7/00 H04R3/12

    摘要: Connected speaker (1) comprising:



    a LAN interface (2);
    a WPAN interface (3);
    pairing means (5) designed to pair the connected speaker with one or more external speakers (6) each equipped with an external WPAN interface (7);
    processing means (8) designed to acquire an input audio signal from an audio source (15) via the LAN interface, to produce at least one distributed audio signal from the input audio signal, to allocate each distributed audio signal to one of the external speakers (6) paired with the connected speaker, and to transmit, to each external speaker, via the WPAN interface (3) of the connected speaker (1) and the external WPAN interface (7) of said external speaker (6), the distributed audio signal that is allocated to said external speaker (6), such that the connected speaker (1) and the external speakers (6) form a multichannel audio playback system.

    System for audio rendering comprising a binaural hearing device and an external device

    公开(公告)号:US11856370B2

    公开(公告)日:2023-12-26

    申请号:US17460078

    申请日:2021-08-27

    申请人: GN Hearing A/S

    IPC分类号: H04R25/00 H04S7/00

    摘要: An electronic device configured to communicate with a binaural hearing device, includes: a wireless communication unit configured to wirelessly receive, from the binaural hearing device, a signal indicating an orientation of a head of a user of the binaural hearing device; a memory storing head-related transfer functions (HRTF) respectively for a left ear and a right ear of the user; an input transducer configured to capture sound at a distance from the user; and a processing unit configured to provide a spatialized binaural audio signal based on the captured sound, the orientation of the head of the user, and the head-related transfer functions (HRTF); wherein the wireless communication unit is configured to transmit the spatialized binaural audio signal to the binaural hearing device for allowing the binaural hearing device to provide left and right audio outputs based on the spatialized binaural audio signal.

    Playback Device Self-Calibration Using PCA-Based Room Response Estimation

    公开(公告)号:US20230362570A1

    公开(公告)日:2023-11-09

    申请号:US18302195

    申请日:2023-04-18

    申请人: Sonos, Inc.

    IPC分类号: H04R27/00 H04R5/04 H04S7/00

    CPC分类号: H04S7/301 H04R5/04 H04R27/00

    摘要: Example techniques described herein relate to calibration of a playback device. Using example techniques, a playback device may self-calibrate by measuring a self-response and using a transfer function to map the self-response to an estimate of a room response. The playback device may determine calibration settings to at least partially offset acoustic characteristics of an environment surrounding the playback device as represented in the estimated room response. The transfer function may be derived from a principal component analysis of a dataset including multiple room responses, perhaps as measured during a multi-point calibration process of the playback device in various environments and conditions.