karaoke system for the display of the text, corresponding to the voice portion of an audiovisual stream on a screen of an audiovisual system

摘要

The system has a real time audio processing unit (110) to receive, at input, an audio stream (Fae) of an input audiovisual stream (Fe) and deliver, at output, a karaoke video stream (Fvk) carrying text information corresponding to a voice part of the input stream. A storage unit (120) temporarily stores a video stream (Fve) and the audio stream of the input stream during a predetermined time. A mixing unit (130) allows mixing of the karaoke video stream with the stored video or audio stream (Fvm) in the storage unit.