Roku, Inc.
Audio time synchronization using prioritized schedule

Abstract:

Disclosed herein are device, method, and computer program product embodiments for synchronizing playback of audio and/or video content. An embodiment operates by a first device in concert with a second device to collectively select a preferred synchronization mechanism over a third device's default synchronization mechanism such that the third device serves as a session leader. The preferred synchronization mechanism's selection is in accordance with a predetermined prioritized synchronization list comprising the default and preferred synchronization-mechanisms and a virtual clock generated from a timing of an audio codec used for streaming the audio and/or video content. The session leader's default synchronization mechanism has a lower level of priority than the first and second devices' preferred synchronization mechanism. The preferred synchronization mechanism provides a more precise level of synchronization for playback of the audio and/or video content than the default synchronization mechanism.