利用功率补偿产生错误隐藏讯号之装置及方法;APPARATUS AND METHOD FOR GENERATING AN ERROR CONCEALMENT SIGNAL USING POWER COMPENSATION

摘要

一种产生错误隐藏讯号之装置，包含：一线性预测编码(LPC)再现产生器(100)，系用以产生一替换LPC再现；一增益计算器(600)，系用以计算来自该LPC再现之一增益资讯；一补偿器(406,408)，系用以使用增益资讯补偿替换LPC再现的一增益影响；以及一LPC合成器(106,108)，系用以使用替换LPC再现滤除编码簿资讯，以取得错误隐藏讯号，其中补偿器(406,408,900)系用以加权编码簿资讯或一LPC合成输出讯号。; a gain calculator (600) for calculating a gain information from the LPC representations; a compensator (406, 408) for compensating a gain influence of the replacement LPC representation using the gain information; and an LPC synthesizer (106, 108) for filtering codebook information using the replacement LPC representation to obtain the error concealment signal, wherein the compensator (406, 408, 900) is configured for weighting the codebook information or an LPC synthesis output signal.