predictive code meaning in Chinese
预测码
Examples
- Predictive coding based on the grads of neighbor coefficient is proposed to encode ll subband because ll subband occupied a majority of energy of transform coefficient
由于ll子带占据变换系数的大部分能量，提出一种基于邻域系数的梯度的预测编码单独编码ll子带。 - Based on the discrete digital model , this paper briefly recount some basic terms and principles in low rate speech processing , focus on the research in the lineal predictive coding and narrate some key technologies in detail
本文从语音信号产生的离散数学模型出发，简要叙述了低速率语音编码的基本原理。然后文章对线性预测编码声码器的一些关键技术进行了详细的论述。 - This thesis tries to update the cmdsr system to achieve the characters below : real - time , better robust , higher recognition rate , non - special - man . considering the disadvantages of traditional improved spectrum subtraction speech enhancement , this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal , the thesis gives the table of initial and the improved parameters , with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system , the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ) , the second level is based on formant parameters ; as for the realization of hardware , the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software , the thesis gives the software design flow chart of cmdsr , simulates the basic theory with matlab language and gives the simulation results
针对传统的“改进谱相减法语音增强”参数设定单一、环境适应能力差的缺点,提出了一种利用模糊理论和“改进的谱相减法”结合的“模糊谱相减法语音增强” ;针对语音信号端点检测困难的特点,通过matlab仿真试验,给出了能够准确确定数码语音端点的初始和改进参数表;提出了利用基于线性预测编码倒谱参数和差分线性预测编码倒谱参数相结合的离散隐含马尔可夫模型进行第一级识别、利用共振峰参数进行第二级识别的两级汉语数码语音识别系统,在保证系统实时性的同时,实现连接汉语数码语音识别系统识别率的提高;在硬件实现上,详细阐述了基于tms320vc5402的连接汉语数码语音识别系统各部分硬件设计;在软件开发上,给出了连接汉语数码语音识别的软件设计各部分的流程图,并对各部分进行了matlab仿真,并给出了仿真结果。 - Interframe predictive coding is used to eliminate the large amount of temporal and spatial redundancy that exists in video sequences and helps in compressing them . motion eliminate can help to eliminate these redundancy . different kinds of algorithms use different criteria for comparison of blocks
它采用开放的编码系统和新一代视频编码技术,它在视频编码发展史上第一次把编码对象从图像帧拓展到具有实际意义的任意形状视频对象,从而实现了从基于像素的传统编码向基于对象和内容的现代编码的转变。