Patent ID: 11881222
Assignee: SONOS, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method to be performed by a playback device forming part of a media playback system and comprising at least one microphone configured to detect sound, the method comprising:
detecting an event, the event being associated with the playback device or the media playback system, wherein the event is not based on sound data captured via the at least one microphone;
responsive to the event detection, opening an input detection window for a given time period, and while the input detection window is open:
receiving an input sound data stream from the at least one microphone, wherein the input sound data stream represents sound detected by the at least one microphone;
analyzing the input sound data stream for a plurality of command keywords supported by the playback device;
determining, based on the analysis, that the input sound data stream includes voice input data comprising a command keyword, wherein the command keyword is one of the plurality of command keywords supported by the playback device; and
responsive to the determining that the input sound data stream includes voice input data comprising a command keyword, causing the media playback system to perform a command corresponding to the command keyword; and

adjusting the given time period associated with the input detection window over time.