Abstract: The present disclosure generally relates to audio synchronization. An example method includes, at a first device with a communication device: performing an audio timing synchronization process that includes: transmitting, via the communication device, to a second device, a request for the second device to participate in the audio timing synchronization process; subsequent to transmitting the request to the second device, causing an output of an audio tone; subsequent to causing the output of the audio tone, receiving data from the second device based on the audio tone; and adjusting an audio timing synchronization setting of a third device based at least in part on the data received from the second device.

Abstract: The present disclosure generally relates to audio synchronization. An example method includes, at a first device with a communication device: performing an audio timing synchronization process that includes: transmitting, via the communication device, to a second device, a request for the second device to participate in the audio timing synchronization process; subsequent to transmitting the request to the second device, causing an output of an audio tone; subsequent to causing the output of the audio tone, receiving data from the second device based on the audio tone; and adjusting an audio timing synchronization setting of a third device based at least in part on the data received from the second device.

Abstract: The present disclosure generally relates to audio synchronization. An example method includes, at a first device with a communication device: performing an audio timing synchronization process that includes: transmitting, via the communication device, to a second device, a request for the second device to participate in the audio timing synchronization process; subsequent to transmitting the request to the second device, causing an output of an audio tone; subsequent to causing the output of the audio tone, receiving data from the second device based on the audio tone; and adjusting an audio timing synchronization setting of a third device based at least in part on the data received from the second device.

Abstract: In some implementations, a computing device can calibrate media playback channels for presenting media content through a media system by determining the media propagation latency through the media system. For example, the computing device can send calibration content (e.g., audio data, video data, etc.) to various playback devices (e.g., playback channels) of the media system and record a timestamp indicating when the calibration content was sent. When the playback devices present the calibration content, a sensor device (e.g., remote control device, smartphone, etc.) can detect the presentation of the calibration content. The sensor device can send calibration data (e.g., media samples that may include the calibration content and/or a timestamp indicating when the media sample was detected by the sensor device) to the computing device. The computing device can determine the propagation latency (e.g., presentation delay) based on the calibration data received from the sensor device.

Abstract: In some implementations, a computing device can calibrate media playback channels for presenting media content through a media system by determining the media propagation latency through the media system. For example, the computing device can send calibration content (e.g., audio data, video data, etc.) to various playback devices (e.g., playback channels) of the media system and record a timestamp indicating when the calibration content was sent. When the playback devices present the calibration content, a sensor device (e.g., remote control device, smartphone, etc.) can detect the presentation of the calibration content. The sensor device can send calibration data (e.g., media samples that may include the calibration content and/or a timestamp indicating when the media sample was detected by the sensor device) to the computing device. The computing device can determine the propagation latency (e.g., presentation delay) based on the calibration data received from the sensor device.