Abstract: A first network microphone device (NMD) is configured to receive, from a second NMD, a first arbitration message including (i) a first measure of confidence associated with a voice input as detected by the second NMD and (ii) the voice input as detected by the second NMD, and receive, from a third NMD, a second arbitration message including (i) a second measure of confidence associated with the voice input as detected by the third NMD and (ii) the voice input as detected by the third NMD. The first NMD is configured to determine that the second measure of confidence is greater than the first measure of confidence and based on the determination, perform voice recognition based on the voice input as detected by the third NMD, where the voice input includes a command to control audio playback by the first, second, and/or third NMD, and after performing voice recognition, executing the command.

Abstract: Systems and methods for controlling multi-site media playback systems include, among other features, a computing system (i) receiving, from a first media playback device connected to a first network, a first registration message, (ii) in response to receiving the first registration message, assigning a system identifier and a first subsystem identifier to the first media playback device, (iii) receiving, from a second media playback device connected to the first network, a second registration message, (iv) in response to receiving the second registration message, assigning the system identifier and the first subsystem identifier to the second media playback device, (v) determining that the second media playback device is disconnected from the first network and connected to a second network, and (vi) in response to determining that the second media playback device is connected to the second network, assigning a second subsystem identifier to the second media playback device.

Abstract: Some disclosed systems and methods include assigning channel streams to satellite playback devices, delaying initial transmission of surround sound content to satellite playback devices to accumulate audio samples for transmission in individual frames of surround sound content, and taking advantage of configured playback delays for different channels of surround sound content to prioritize transmission of channels of surround sound content having shorter configured playback delays over transmission of channels of surround sound content having longer configured playback delays.

Abstract: An example implementation may involve a group of wearable playback devices including a first wearable playback device and a second wearable playback device. The wearable playback devices render multi-channel audio content according to particular playback responsibilities in the group. When a failure or other issue with the second wearable playback device occurs, the first playback device assumes at least part of the playback responsibility of the second playback device.

Abstract: An example implementation may involve a computing system receiving, from a media playback system, a request to initiate playback of a cloud queue. The cloud queue may currently have a first access status that authorizes a first set of queue operations, which may include playback of the cloud queue. After receiving the request to initiate playback, the computing system may cause audio tracks of the cloud queue to be queued in a local queue of the media playback system such that the media playback system may playback audio tracks of the cloud queue via the local queue. The computing system may modify the access status of the cloud queue to a second access status. This second access status may authorize a second set of queue operations on the cloud queue. The computing system may cause access to the local queue to be restricted to the second set of queue operations.

Abstract: Example techniques facilitate for applying a share restriction to a curated playlist within a shared playback queue. In example implementations, a first media playback system may share its playback queue with a second media playback system. The playback queue of the first media playback system may include a curated playlist associated with a share restriction. When sharing its playback queue of the first media playback system, the first media playback system may enforce the share restriction on the curated playlist as queued in a second playback queue of the second media playback system.

Abstract: A system comprises a first network microphone device (NMD) communicatively coupled to a second NMD via a network interface of the first NMD, wherein the first NMD is configured to: receive, from the second NMD via the network interface of the first NMD, an arbitration message comprising (i) a first measure of confidence associated with a voice input detected by the second NMD and (ii) an identifier associated with at least a portion of the voice input detected by the second NMD, determine that the first measure of confidence is greater than a second measure of confidence, wherein the second measure of confidence is associated with a voice input detected by the first NMD via at least one microphone of the second NMD, and based on the determination, perform voice recognition based on the voice input detected by the second NMD, wherein the voice input detected by the second NMD comprises a command to control the playback of the audio content by at least one of the first or the second NMDs.

Abstract: Examples of dynamic bonding of playback devices are disclosed. A disclosed example first playback device includes a shared device identifier to determine that a second playback device is sharable between a first bonded zone and a second bonded zone, the first bonded zone comprising the first playback device, the second bonded zone comprising a second playback device; a device manager to cause the shared playback device to join the first bonded zone; and an adjuster to change a first audio parameter of the first playback device in accordance with the joining of the shared playback device in the first bonded zone, wherein at least one of the shared device identifier, the device manager, or the adjuster is implemented via a processor.

Abstract: Example techniques relate to cloud queue synchronization. An example implementation may involve a playback device receiving, from a cloud computing system, data representing a play message comprising: (i) a play pointer representing a particular media item; (ii) an indication of one or more media items, the one or more media items including the particular media item; and (iii) a universal resource identifier (URI) representing a location of the particular media item at one or more servers of a streaming audio service. The playback device queues the one or more media items in a local queue stored in data storage of the playback device, streams the particular media item, and plays back the particular media item. After beginning playback of the particular media item, the playback device sends a playback started message comprising the play pointer, the play pointer representing the particular media item as the currently playing media item.

Abstract: Embodiments disclosed herein involve a first playback device, associated with a first household, where the first playback device is configured to mirror a playback queue that is associated with a second playback device, where the second playback device is associated with a second household. For instance, a device associated with the first household, such as a controller, may send a command to the first playback device to mirror the playback queue associated with the second playback device. Based on the received command, the first playback device may mirror the playback queue that is associated with the second playback device such that contents of a playback queue that is associated with the first playback device are the same as contents of the playback queue that is associated with the second playback device.

Abstract: An example implementation may involve a first playback device rendering audio content. The example implementation may also involve the first playback device detecting that a second playback device has been connected to a playback system. After detecting that the second playback device has been connected to the playback system, the first playback device may determine a playback responsibility associated with the second playback device. The determined playback responsibility may include a grouping with the first playback device. After determining the playback responsibility associated with the second playback device, the first playback device may direct the second playback device to render the audio content.

Abstract: A network interface of a first computing device is configured to operate according to a bridge table. The bridge table defines a spanning tree protocol for a mesh network and identifies one or more reachable nodes. A communication characteristic between the first computing device and a second computing device of the one or more reachable nodes is determined to exceed a quality threshold. Based on the determination that the communication characteristic exceeds the quality threshold, the spanning tree protocol is overridden and the data is transmitted directly to the second computing device via a direct communication route.

Abstract: Devices, system, and methods are disclosed for provisioning devices over a cloud network in accordance with modifications to operational settings of a media playback system. In example embodiments, a playback device is provided that is configured to identify a change to a property of an operational setting of the media playback system. Based on the identified change, the playback device is configured to locally provision itself in accordance with the identified change to the property of the operational setting, cause at least one additional playback device to be provisioned in accordance with the identified change to the property of the operational setting, and cause a cloud computing device located outside of the media playback system to be provisioned in accordance with the identified change to the property of the operational setting.

Abstract: Certain examples accommodate data routing optimizations. An example method comprises receiving, by a first playback device, data to be directed to at least a second playback device, the data comprising: i) audio data and ii) non-audio data. The method comprises transmitting, by the first playback device, the non-audio data to the second playback device via a third playback device according to a network protocol for communication between the first playback device and at least the second playback device via a wireless communication link. The method further comprises determining, by the first playback device, that a signal strength of the wireless communication link is above a threshold, and in response to the determination, transmitting the audio data to the second playback device via the wireless communication link, wherein transmitting the audio data comprises transmitting the audio data over the wireless communication link not according to the network protocol.

Abstract: Low-latency audio networking is disclosed. In one embodiment, an example playback device includes a processor and memory having stored thereon instructions executable by the processor. The example instructions are to cause the first playback device to perform functions comprising: receiving audio information; selecting a first frequency channel of a first spectrum based on a threshold latency associated with the audio information; transmitting to the second playback device via a second frequency channel of a second spectrum, control information that identifies the first frequency channel of the first spectrum; and transmitting to the second playback device via the first frequency channel of the first spectrum, the audio information to be played by the second playback device.

Abstract: Example implementations involve cloud queue synchronization. An example implementation may involve a playback device sending a request for a window of media items from a cloud queue of media items that is accessible to the playback device via a wide area network, the request including (i) an indication of a reference media item, (ii) a first parameter indicating a number of media items preceding the reference media item to include in the window and (iii) a second parameter indicating a number of media items subsequent to the reference media item to include in the window. The playback device receives, in response to the request for the window of media items, an indication of a particular window of media items from the cloud queue of media items and incorporates the media items of the particular window into a local queue of media items.

Abstract: a request for one or more respective second sources of the one or more particular audio tracks at one or more second streaming audio services

Abstract: A network interface of a first computing device is configured to operate according to a bridge table. The bridge table defines a spanning tree protocol for a mesh network and identifies one or more reachable nodes. A communication characteristic between the first computing device and a second computing device of the one or more reachable nodes is determined to exceed a quality threshold. Based on the determination that the communication characteristic exceeds the quality threshold, the spanning tree protocol is overridden and the data is transmitted directly to the second computing device via a direct communication route.

Abstract: Low-latency audio networking is disclosed. In one embodiment, an example playback device includes a processor and memory having stored thereon instructions executable by the processor. The example instructions are to cause the first playback device to perform functions comprising: receiving audio information; selecting a first frequency channel of a first spectrum based on a threshold latency associated with the audio information; transmitting to the second playback device via a second frequency channel of a second spectrum, control information that identifies the first frequency channel of the first spectrum; and transmitting to the second playback device via the first frequency channel of the first spectrum, the audio information to be played by the second playback device.

Abstract: Example implementations involve cloud queue synchronization. An example implementation may involve while playing back a particular media item from a local queue of media items, a playback device sending, to a remote server over the network interface, (i) a request for a window of media items from a cloud queue of media items that is accessible to the playback device via a wide area network, and (ii) an indication of the particular media item that is being played by the playback device. The playback device receives, over the network interface in response to the request for the window of media items, an indication of two or more media items from the cloud queue of media items and incorporates an indication of at least one of the two or more media items into the local queue of media items.