Sonos, Inc.

USA As Represented by Secretary of the Navy

Daniel Casimiro

Nathan Fish

Robert Andrew Lambourne

Steven R Beckhardt

Jodi Vautrin

Won So

Keith Thoresz

Sachin Lad

Frank Charlton

Gregory Paul Ramsperger

Steven E Crocker

Robert F Cutler, Iii

Ronald R Smalley

Example techniques described herein involve a point-of-contact (POC) playback device that operates as an intermediary between the cloud and a media playback system that includes the POC playback device. As the intermediary, when the cloud issues a command to the media playback system, the POC playback device may perform some or all processing of the command to determine how to implement that command in the media playback system. For instance, the POC playback device may determine the target devices for a command, and then cause the target devices to carry out the command. This processing by the POC playback device may simplify control of the media playback system from the perspective of third party controllers, as these controllers need not have full and/or completely up-to-date knowledge of the media playback system functionality and status, among other possible benefits.

Control with distributed command processing

A command to update a volume level of a group comprising a first and a second playback device to a requested group volume level is detected, the requested group volume level indicating respective requested volume levels for the first and second playback devices. Based on the command, (i) a first volume state variable of the first playback device is determined to be adjusted based on a first maximum volume state variable and (ii) a second volume state variable of the second playback device is determined to be adjusted based on a second maximum volume state variable. Based on the first and second maximum volume state variables, the volume level of the playback group is adjusted to an alternate group volume level different from the requested group volume level. An indication that the volume level of the playback group has been adjusted to the requested group volume level is provided.

Media playback system with maximum volume setting

Systems and methods for a playback device outputting an audio alert from a network-enabled device include (i) while the playback device is playing back audio content, receiving an alert communication from the network-enabled device, the alert communication including (a) an audio notification identifier that identifies an audio notification and (b) a priority identifier that identifies a priority level of the audio notification; (ii) responsive to receiving the alert communication, adding the audio notification to a notification queue at a particular queue position, where the particular queue position of the audio notification in the notification queue is based on the priority level of the audio notification relative to other audio content in the notification queue; (iii) adjusting playback of the audio content for playing back the audio notification; and (iv) the playback device playing back the audio notification.

Audio notifications

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 first playback device is configured to identify a change to a property of an operational setting of the media playback system at a first geographic location of the media playback system, and based on the identified change, (i) locally provision itself in accordance with the identified change to the property of the operational setting, (ii) 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, and (iii) cause the cloud computing device to initiate provisioning of a second playback device at a second geographic location in accordance with the identified change to the property of the operational setting at the first geographic location.

Distributed provisioning of properties of operational settings of a media playback system

In one example, a zone player may include a network interface, at least one processor, a non-transitory computer-readable medium, and program instructions stored on the non-transitory computer-readable medium that may be executable by the at least one processor such that the zone player is configured to receive an instruction to change a volume setting of the zone player to a requested volume level; in response to receiving the instruction to change the volume setting of the zone player to the requested volume level, adjust the volume setting of the zone player to an adapted volume level that is lower than the requested volume level; and after adjusting the volume setting of the zone player to the adapted volume level, send an indication that the volume setting of the zone player has been adjusted to the requested volume level rather than the adapted volume level.

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.

Disclosed herein are embodiments for adjusting playback volume in a media playback system that utilizes a maximum volume feature. In one embodiment, when a playback device receives an instruction to change its playback volume to a requested volume level, the playback device will not necessarily set its playback volume state variable to the requested volume level, but rather will calculate a new (typically lower) alternate volume level based on the maximum volume state variable and instead set its playback volume state variable to that alternate volume level. Moreover, when a playback device shares certain of its state variables among the other devices of the media playback system, the playback device will not necessarily share its actual playback volume state variable, but rather will calculate a new (typically higher) representative volume level and instead share that representative volume level.

A method is disclosed for calibration of a towed line array. In a low frequency band, calibration is performed using an acoustic field observed by reference standard hydrophones. The observations form a model of a complex acoustic field throughout a space occupied by a measurement apparatus. The array sensitivities are computed by comparing output voltages of the array with the acoustic field estimated at the locations occupied by hydrophones of the array. Variations in the acoustic field that cannot be accounted for by free field propagation theory are included in the calculation of array channel sensitivities. The method extends the low frequency limit for the calibration to less than the minimum frequency at which free field propagation conditions can be approximated. Boundary reflections and spatial variations in the acoustic field are recognized. The spatial distribution of acoustic energy is used to provide low frequency calibration with improved precision.

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Mansfield, MA, United States of America

Daniel Casimiro