METHOD AND APPARATUS FOR SYNCHRONIZING AUDIO AND VIDEO SIGNALS

摘要

A method, apparatus and computer program product are provided to synchronize audio signals with video images that are replayed with a modified motion. In a method, a trajectory is determined for each audio object of an audio signal. The method also determines each of the audio objects to be a transient or non-transient object. The method also causes a respective audio object to be differently extended depending upon whether the audio object is determined to be a transient object or a non-transient object, thereby synchronizing video signals that are to be played back with a predefined motion. The method causes the respective audio object to be differently extended by splitting the transient object into transient segments, inserting silent segments therebetween and maintaining the trajectories of the transient object and/or by repeating the non-transient object with a trajectory that varies based on the predefined motion of the video signals.

主权项

1. A method comprising:
determining a trajectory for each of one or more audio objects of an audio signal; determining each of the audio objects to be a transient object or a non-transient object; and causing, with a processor, a respective audio object to be differently extended depending upon whether the audio object is determined to be a transient object or a non-transient object so as to synchronize a video signal that is to be played back in a predefined motion, wherein causing the respective audio object to be differently extended comprises:
in an instance in which the respective audio object is determined to be a transient object, splitting the transient object into transient segments, inserting silent segments between the transient segments and maintaining the trajectories of the transient object; andin an instance in which the respective audio object is determined to be a non-transient object, repeating the non-transient object with a trajectory that varies over time in correspondence to the predefined motion of the video signal.