| 摘要 |
The embodiments described herein provide a method and system for determining the extent to which a plurality of media signals are out of sync with each other. The method includes: receiving a first input media signal and a second input media signal wherein the first and second input media signals are in sync with each other; extracting at least one first characteristic feature from the first input media signal; extracting at least one second characteristic feature from the second input media signal; receiving a first output media signal and a second output media signal wherein the first output signal corresponds to the first input media signal after being transmitted through a network, and the second output signal corresponds to the second input media signal after being transmitted through the network; extracting the at least one first characteristic feature from the first output media signal; extracting the at least one second characteristic feature from the second output media signal; calculating a first signal delay based on the at least one first characteristic feature extracted from the first input and output media signals; calculating a second signal delay based on the at least one second characteristic feature extracted from the second input and output media signals; and outputting a synchronization signal based on the difference between the first and second delay signals wherein the synchronization signal represents the extent to which the first and second output media signals are out of sync with each other. |
