METHOD FOR PROCESSING A MULTICHANNEL AUDIO SIGNAL INTO A FREQUENCY AREA WATERMARK IN REAL TIME AND A DEVICE THEREOF CAPABLE OF OPTIMIZING REAL TIME PROCESSING RESTRICTION

摘要

PURPOSE: A method for processing a multichannel audio signal into a frequency area WM(WaterMark) in real time and a device thereof are provided to optimize a compromise between the security and robustness of a WM.;CONSTITUTION: A device starts a timer(31). The device selects a first channel of an audio channel priority list for a section or an current audio signal block(32). The device reads a current timer value(33). If time for processing the next channel of the audio channel priority list into a WM is sufficient, the device watermarks a current audio channel 'm' of the list(34,35). If the time is not sufficient, the device does not watermark the channel 'm'(39).;COPYRIGHT KIPO 2013;[Reference numerals] (31) Starting a timer; (32) Selecting a first channel; (33) Reading the timer; (34) Is there still sufficient time?; (37) Are there more channels?; (38) Next channel; (AA) Start; (BB,EE) No; (CC,DD) Yes; (FF) End