公开(公告)号：US20240381045A1

公开(公告)日：2024-11-14

申请号：US18779258

申请日：2024-07-22

Applicant: Amazon Technologies, Inc.

Inventor： Spencer Russell ,  Shobha Devi Kuruba Buchannagari ,  FNU Anish Kumar ,  Carlos Renato Nakagawa

IPC: H04S3/00 ,  H04R3/12 ,  H04R5/04 ,  H04S7/00

Abstract: A system configured to create a flexible home theater group using a variety of different devices. To enable the home theater group to generate synchronized audio, the system performs device localization to generate map data, which represents locations of devices in a device map. The map data may include a listening position and/or television, such that the map data is centered on the listening position with the television along a vertical axis. To generate the map data, the system selects a primary device that determines calibration data indicating a sequence when each of the individual devices generates playback audio. The primary device sends the calibration data to secondary devices and each device generates playback audio at a designated time in the sequence, enabling other devices to capture the output audio and determine a relative position of the playback device (for example using angle of arrival and distance information). The playback audio may be outside a human hearing range.