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METHOD AND SYSTEM FOR TESTING LIP-SYNCHRONIZATION OF A DIGITAL TELEVISION RECEIVER
METHOD AND SYSTEM FOR TESTING LIP-SYNCHRONIZATION OF A DIGITAL TELEVISION RECEIVER
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机译:数字电视接收机的唇形同步测试方法和系统
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摘要
A lip synchronization test method for DTV receivers. The method includes the steps of: generating a digital audio stream having a frame index inserted therein and a video stream having a Transient Effect Area Test Signal (TATS) inserted therein; comparing the waveform of the time-indexed audio signal with that of the time-indexed video signal; and measuring and calculating a time difference dt between the audio and video signals based upon the time indexes of the time-indexed audio and video signals.
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