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Devices, systems, and methods for distributed voice processing

專利號
US10867604B2
公開日期
2020-12-15
申請人
Sonos, Inc.（US CA Santa Barbara）
發(fā)明人
Connor Kristopher Smith; John Tolomei; Betty Lee
IPC分類
G10L15/22; G10L15/08; H04R3/00; G10L15/30; H04R1/40
技術(shù)領(lǐng)域
playback,wake,nmd,sound,vas,word,voice,device,may,in
地域： CA CA Santa Barbara

摘要

Systems and methods for distributed voice processing are disclosed herein. In one example, the method includes detecting sound via a microphone array of a first playback device and analyzing, via a first wake-word engine of the first playback device, the detected sound. The first playback device may transmit data associated with the detected sound to a second playback device over a local area network. A second wake-word engine of the second playback device may analyze the transmitted data associated with the detected sound. The method may further include identifying that the detected sound contains either a first wake word or a second wake word based on the analysis via the first and second wake-word engines, respectively. Based on the identification, sound data corresponding to the detected sound may be transmitted over a wide area network to a remote computing device associated with a particular voice assistant service.

說明書

Each channel 562 may correspond to a particular microphone 222. For example, an NMD having six microphones may have six corresponding channels. Each channel of the detected sound SD may bear certain similarities to the other channels but may differ in certain regards, which may be due to the position of the given channel's corresponding microphone relative to the microphones of other channels. For example, one or more of the channels of the detected sound SD may have a greater signal to noise ratio (“SNR”) of speech to background noise than other channels.

As further shown in FIG. 5, the voice processor 560 includes one or more voice capture components, such as an AEC 564, a spatial processor 566, and one or more buffers 568. In operation, the AEC 564 receives the detected sound SD and filters or otherwise processes the sound to suppress echoes and/or to otherwise improve the quality of the detected sound SD. That processed sound may then be passed to the spatial processor 566.

權(quán)利要求

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