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Study and Measure of Audio and Video Signal Time Difference
Author(s): 
Pages: 85-87
Year: Issue:  2
Journal: Video Engineering

Keyword:  音视频同步性音视频信号时间差波形测试信号声像测试信号;
Abstract: 讨论了数字电视接收机对音视频信号同步性提出要求的原因.介绍了人们对声像不同步的感知能力和能忍受的阈值,从而对电视终端设备提出比较合理的限额值要求.在参考了以往测量方法的基础上,提出了改进的测量方法和相应的测试信号的设计;最后对如何掌握正确的测量操作作了简单介绍.
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