Method for synchronizing audio playback of a plurality of digital media renders, and related digital media controller and digital audio media render

摘要

A method for synchronizing audio playback of a plurality of digital media renders including a first digital audio media render and at least one second digital audio media render. The method includes: detecting a relative time difference between the first digital audio media render and the at least one second digital audio media render, and controlling audio playback of the at least one second digital audio media render according to the relative time difference, to make audio playback of the at least one second digital media render synchronized with audio playback of the first digital audio media render.

主权项

1. A method of synchronizing audio playback of a plurality of digital media renders (DMRs), wherein the DMRs comprise a first digital audio media render and at least one second digital audio media render, the method comprising:
detecting a relative time position difference between the first digital audio media render and the at least one second digital audio media render; generating a mismatching relative time position according to the relative time position difference, comprising:
determining if audio playback synchronization between the first digital audio media render and the at least one second digital audio media render is under a stable state; andwhen the audio playback synchronization is under the stable state, providing the relative time position difference, acting as a phase error needs to be eliminated, to at least a phase-locked loop (PLL) unit to generate the mismatching relative time position; and controlling audio playback of the at least one second digital audio media render to be synchronous to audio playback of the first digital audio media render according to the mismatching relative time position.