Example systems and techniques disclosed herein facilitate interoperability between different media playback systems referred to herein as a virtual line-in (VLI) media playback system and a native playback system. When a VLI session is created by a VLI sender, a first native playback device can join a VLI group as a VLI receiver. As a VLI receiver, the first native playback device receives audio content and playback commands from the VLI sender to facilitate synchronous playback with other VLI receivers. At the same time, this native playback device can concurrently operate as a native domain group coordinator of a native domain synchrony group. As the native domain group coordinator, the native playback device translates VLI domain audio, control, and timing signals into the native domain and distributes such signals to native domain group members. In this way, the native domain group members can synchronize their playback with the VLI group.

Example systems and techniques disclosed herein facilitate interoperability between different media playback systems referred to herein as a virtual line-in (VLI) media playback system and a native playback system. When a VLI session is created by a VLI sender, a first native playback device can join a VLI group as a VLI receiver. As a VLI receiver, the first native playback device receives audio content and playback commands from the VLI sender to facilitate synchronous playback with other VLI receivers. At the same time, this native playback device can concurrently operate as a native domain group coordinator of a native domain synchrony group. As the native domain group coordinator, the native playback device translates VLI domain audio, control, and timing signals into the native domain and distributes such signals to native domain group members. In this way, the native domain group members can synchronize their playback with the VLI group.

Systems and methods disclosed herein include, determining a proximity of the first networked device to a second networked device, determining whether there is a wired network connection existing between the first networked device and the second networked device, and in response to determining the proximity and the existence of a wired network connection, reconfiguring one or more operational parameters of one or both of the first networked device and the second networked device.

Methods, systems, and apparatuses are described for testing communication with a device. A multimedia receiver may be communicatively coupled to a media device, such as a source media device. The multimedia receiver may transmit a test command to control the source media device using a communication protocol. A video frame output by the source media device may be obtained. Based at least on the video frame, it may be determined whether the source media device received the test command. In response to a determination that the source media device received the test command, an indication may be stored that the source media device may be controlled using the communication protocol.

Example embodiments provide techniques for configuring a system to receive an input at a source device and present an output at another device within the same space as the source device. The output device may be selected based on various factors relating to the capabilities of the output device, the type of output responsive to the user input, whether the output device is active, whether the output device was recently used and others.

A video switching system, which can be part of an audio video receivers (AVR), enables simultaneous routing of multiple independent video streams (e.g., 8K video streams) received at HDMI inputs of the AVR from digital media sources to multiple selected digital display devices.

A user's time and effort in making settings about information transmission from devices is reduced. An information processing method includes receiving information from a device, transmitting the received information to an information terminal of a user, detecting an attendance state of the user, and determining whether to issue a notification of the information based on the detected attendance state of the user.