Abstract:
本文提出了一种由恒包络正弦和指数衰减包络正弦组成的音频信号建模方法,它可分别对信号的稳态和暂态分量建模。暂态分量的起始时刻由延迟参数确定,减少了合成信号的预回声。模型参数基于迭代分析合成法进行估计,通过采用递归滤波器组、折半搜索等快速计算方法,减少了计算复杂度。音频信号建模结果表明,该方法能有效表征原始信号。
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Year: 2009
Language: Chinese
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