A system may use multiple speech interface devices to interact with a user by speech. All or
a portion of the speech interface devices may detect a user utterance and may initiate …

Disclosed herein are example techniques to identify a voice service to process a voice input.
An example implementation may involve a network microphone device (NMD) receiving, via …

Abstract Systems and methods for media playback via a media playback system include (i)
capturing a voice input comprising a request for media content,(ii) receiving information …

Abstract Systems and methods for managing multiple voice assistants are disclosed. Audio
input is received via one or more microphones of a playback device. A first activation word is …

Abstract Systems and methods for media playback via a media playback system include
capturing sound data via a network microphone device and identifying a candidate wake …

In one aspect, a playback device is configured to identify in an audio stream, via a second
wake-word engine, a false wake word for a first wake-word engine that is configured to …

Systems and methods for determining and adapting to changes in microphone performance
of playback devices are disclosed herein. In one example, an audio input is received at an …

A voice input comprising a command word, one or more media variable instances, and one
or more zone variable instances is received. A media playback system command which …

Related US Application Data (63) Continuation of application No. 15/833,404, filed on Dec.
6, 2017, which is a continuation of application No. 15/631,310, filed on Jun. 23, 2017, now …

Abstract Systems, methods, and devices with reduced power consumption in network
microphone devices. In one embodiment, a network microphone device is configured to …