音频分析与合成LPC.rar

上传者: kason_j | 上传时间: 2021-07-09 14:04:32 | 文件大小: 1.84MB | 文件类型: RAR
数字语音处理的作业,应用LPC分析元音音素的共振峰,并且利用不同样本的预测系数和误差函数合成音效,附音频和代码文件,仅供参考。 线性预测(Linear Prediction COding, LPC)可及精确地估计语音参数,其基本思想是一个语音的取样可用过去若干语音取样的线性组合来逼近。通过使得实际语音取样与LPC取样间差值的平方和最小,即进行LMS逼近,可决定唯一的一组预测系数。而他们就是线性组合中的加权系数。LPC用于语音信号处理,不仅有预测功能,而且提供了一个非常好的声道模型。利用其参数可以做很多如降低传输码率、解混响等。线性分析预测参数包括LPC、PARCOR以及LSP参数等多种

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