SYNCHRONIZATION OF MULTIMEDIA STREAMS

摘要

This method for synchronizing a first multimedia stream rendered on a first terminal and a second multimedia stream rendered on a second terminal, comprises a step of generation, from an original audio sequence of the first stream, of original audio fingerprints, and further comprises steps of :
a) generation from a first sequence of the first stream first audio fingerprints;b) comparison between the first fingerprints and the original fingerprints in order to obtain one or more first synchronization positions;c) correlation of the first sequence with one or more pieces of the original sequence located around the first synchronization positions in order to obtain a second synchronization positiond) rendering of the second stream on the second terminal using the second synchronization position.

主权项

1. Synchronization method for synchronizing a first multimedia stream intended for being rendered on a first terminal and a second multimedia stream intended for being rendered on a second terminal, comprising a preliminary step of generation, from an original audio sequence of the first multimedia stream, of original audio fingerprints, and further comprising steps of :
a) receiving a first sequence of audio data of the first multimedia stream; b) generation from the first sequence of first audio fingerprints; c) comparison between the first audio fingerprints and blocks of the original audio fingerprints in order to obtain one or more first synchronization positions in the original sequence; d) correlation of the first sequence with one or more pieces of the original sequence located around the first synchronization positions in order to obtain only one second synchronization position in the original sequence; and e) synchronization of the first and the second multimedia streams using the second synchronization position.