首页> 外国专利> Method and device to quantize the parameters of linear prediction coding of the signal of the sound to a variable bit rate, and.Method and device to give quantize the parameters of linear prediction in decoding of the signal of the sound to a variable bit rate

Method and device to quantize the parameters of linear prediction coding of the signal of the sound to a variable bit rate, and.Method and device to give quantize the parameters of linear prediction in decoding of the signal of the sound to a variable bit rate

机译：将声音的信号的线性预测编码的参数量化为可变比特率的方法和装置，以及将声音的信号的线性预测编码的参数量化为可变比特率的方法和设备。

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摘要

Method and device to quantize the parameters of linear prediction coding of the signal of the sound to a variable bit rate, and.Method and device to give quantize the parameters of linear prediction in decoding of the signal of the sound to a variable bit rate.The present invention relates to a method and a device to quantize the parameters of linear prediction in encoding of the sound signal of variable bit rate.In which the vector input linear prediction parameter is received, the framework of the sound signal corresponding to the input vector of parameter of linear prediction is classified.The prediction vector is calculated, the calculated prediction vector is removed from the input vector linear prediction parameter vector to produce the error of prediction.And the vector of error of prediction is quantified.The calculation of the prediction vector comprises select one of a plurality of prediction schemes for the classification of the sound signal.And process the vector of error of prediction through the prediction scheme is selected.The present invention also relates to a method and a device to give quantize the parameters of linear prediction in decoding of the sound signal to a variable bit rate.In which at least one quantization index and the information on the classification table of sound signal corresponding to the index of quantization are received.The vector of error of prediction is recovered by applying the index for at least one quantization table, a prediction vector is reconstructed.And the vector of the linear prediction parameter vector is produced in response to the error of the prediction vector prediction recovered and reconstructed.The reconstruction of the prediction vector comprises processing the vector of error prediction recovered through one of a plurality of prediction schemes depending on the information classification of Q.Table.

机译：将声音的信号的线性预测编码的参数量化为可变比特率的方法和装置，以及将声音的信号的线性预测编码的参数量化为可变比特率的方法和设备。本发明涉及在可变比特率的声音信号的编码中对线性预测的参数进行量化的方法和装置。在接收矢量输入的线性预测参数的情况下，与输入矢量相对应的声音信号的框架。对线性预测的参数进行分类，计算预测向量，从输入向量的线性预测参数向量中删除计算出的预测向量，以产生预测误差，并对预测误差向量进行量化。向量包括对声音信号进行分类的多种预测方案之一。通过预测方案选择预测。本发明还涉及一种在声音信号的解码中将线性预测的参数量化为可变比特率的方法和装置。其中，至少一个量化指标和信息接收到与量化指标相对应的声音信号分类表上的数据。通过将索引应用于至少一个量化表来恢复预测误差向量，重构预测向量。线性预测参数向量的向量响应于恢复并重建的预测矢量预测的误差而产生误差预测向量。预测矢量的重建包括根据Q.Table的信息分类处理通过多种预测方案之一恢复的误差预测向量。

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公开/公告号BR0317652A

专利类型
公开/公告日2005-12-06

原文格式PDF
申请/专利权人 NOKIA CORPORATION;
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申请/专利号BR20030317652
发明设计人 MILAN JELINEK;
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申请日2003-12-18
分类号G10L19/14;G10L19/02;
国家 BR
入库时间 2022-08-21 21:40:22

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