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Linear prediction model order determination device, linear prediction model order determination method, recording medium and program the

机译：线性预测模型顺序确定装置，线性预测模型顺序确定方法，记录介质和程序

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摘要

PPROBLEM TO BE SOLVED: To determine an optimal model degree of a linear prediction model without actually determining a code amount for each model degree. PSOLUTION: A PARCOR coefficient for each linear prediction model to a model degree (m) and a forward prediction error sequence and/or a backward prediction error sequence in the model degree (m) are calculated, respectively from an input signal. A code amount of a prediction error waveform that is an error between a predictive value of the linear prediction model of the model degree (m) and the input signal, is then estimated from the forward prediction error sequence and/or the backward prediction error sequence in the model degree (m). An individual code amount corresponding to respective PARCOR coefficients to the model degree (m) or an entire code amount corresponding to all the PARCOR coefficients is calculated. Regarding a plurality of model degrees, a total code amount of a total of entire code amounts in the respective model degrees (m) or of individual code amounts to the model degree (m) and estimated code amounts of the prediction error waveform, is found and one model degree is determined from the total code amount. PCOPYRIGHT: (C)2008,JPO&INPIT

机译：

要解决的问题：确定线性预测模型的最佳模型度，而无需实际确定每个模型度的代码量。解决方案：分别从输入信号计算每个线性预测模型的模型度（m）的PARCOR系数和模型度（m）中的前向预测误差序列和/或后向预测误差序列。然后，根据前向预测误差序列和/或后向预测误差序列来估计作为模型度（m）的线性预测模型的预测值与输入信号之间的误差的预测误差波形的代码量。在模型度（m）中。计算与模型度（m）对应的各个PARCOR系数相对应的单个代码量，或与所有PARCOR系数相对应的整个代码量。关于多个模型度，求出各个模型度（m）中的全部编码量的合计的总编码量或达到模型度（m）的各个编码量的合计编码量和预测误差波形的推定编码量。从总代码量中确定一个模型度。

版权：（C）2008，日本特许厅＆INPIT 展开▼

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公开/公告号JP4634969B2

专利类型
公开/公告日2011-02-23

原文格式PDF
申请/专利权人
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申请/专利号JP20060148919
发明设计人
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申请日2006-05-29
分类号H03M7/30;G10L11/00;G10L19/06;
国家 JP
入库时间 2022-08-21 18:19:22

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