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    • 4. 发明专利
    • Method for generating concealment frames in communication system
    • 在通信系统中生成隐藏框架的方法
    • JP2014038347A
    • 2014-02-27
    • JP2013198241
    • 2013-09-25
    • Skypeスカイプ
    • SOEREN VANG ANDERSEN
    • G10L19/005
    • H04L65/604G10L19/005G10L19/24G10L19/26H04M3/18
    • PROBLEM TO BE SOLVED: To provide a method which generates concealment samples for transmitting a digitized audio signal, and also eases restrictions on an audible artifact.SOLUTION: A method includes : a sub-step a) which indexes one buffered sample by stepping a plurality of buffered samples in reverse time order; a sub-step b) which reads out the plurality of buffered samples in time order from the one buffered sample that is indexed in the sub-step a); and a sub-step c) which repeats the sub-step a) for indexing and the sub-step b) for reading-out a plurality of times according to length of sequence of a concealment sample, and also gradually moves an indexing position in reverse time order and time order. In the repeating processing, the indexing position is moved later in time according to an increase of repeating time.
    • 要解决的问题:提供一种产生用于发送数字化音频信号的隐藏样本的方法,并且还缓解对可听见的伪影的限制。解决方案:一种方法包括:子步骤a)其通过步进多个来对一个缓冲样本进行索引 缓冲样品的反向时间顺序; 从步骤a)中索引的一个缓冲样本以时间顺序读出多个缓冲样本的子步骤b)。 以及重复用于索引的子步骤a)和子步骤b)的子步骤c),用于根据隐藏样本的顺序的长度读出多次,并且还逐渐地移动索引位置 反向时间顺序和时间顺序。 在重复处理中,根据重复时间的增加,分度位置在时间上移动。