Patent ID: 8903218

Claim:
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; and when 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.