Inter-destination Multimedia Synchronization: A Contemporary Survey

The advent of social networking applications, media streaming technologies, and synchronous communications has created an evolution towards dynamic shared media experiences. In this new model, geographically distributed groups of users can be immersed in a common virtual networked environment in which they can interact and collaborate in real- time within the context of simultaneous media content consumption. In this environment, intra-stream and inter-stream synchronization techniques are used inside the consumers’ playout devices, while synchronization of media streams across multiple separated locations is required. This synchronization is nown as multipoint, group or Inter-Destination Multimedia Synchronization (IDMS) and is needed in many applications such as social TV and synchronous e-learning. This survey paper discusses intraand inter-stream synchronization issues, but it mainly focuses on the most well-known IDMS techniques that can be used in emerging distributed multimedia applications. In addition, it provides some research directions for future work.

Research and Simulation for Audio Stream Synchronization Algorithm of Multimedia Network

This study is focused on audio streaming synchronization problems of multimedia network. Audio streaming synchronization issues of multimedia network directly affect the development of multimedia technology. To this end, this paper presents a multimedia network audio stream synchronization method based on the whole node identification, with feature detection method to identify endpoint of audio streams in perception node, and an audio fingerprint is conducted for information of each node, then, mark the starting point of sync, and sync tasks are decomposed at each node, and finally the audio stream synchronization is achieved in the cluster head node, error correction adjustment and information correction are performed to reduce the energy consumption of cluster head node, enhance correction capability of information loss. The simulation results show that the synchronization delay of proposed algorithm is significantly reduced, which enhance the performance of the multimedia network.