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vq
- 说话人识别是语音识别的一种特殊方式,其目的不是识别语音内容,而是识别说话人是谁,即从语音信号中提取个人特征。采用矢量量化(VQ)可避免困难的语音分段问题和时间归整问题,且作为一种数据压缩手段可大大减少系统所需的数据存储量。本文提出了识别特征选取采用复倒谱特征参数和对应用VQ的说话人识别系统改进的一种方法。当用于训练的数据量较小时,复倒谱特征可以得到比较稳定的识别性能。VQ的改进方法避免了说话人识别系统的训练时间与使用时间相差过长从而导致系统的性能明显下降以及若利用自相关函数带来的大量运算。-Sp
PCM
- PCM相关说明,包括基本工作原理,量化过程和编码原理等。-PCM instructions, including the basic working principle, quantization and coding process rationale.
Traitement_Signal_2008_ch5
- Course of signal processing on sampling and quantization
QuantizationEffect
- this document investigates on the quantization effect of implementing the adaptive algorithms for echo cancellers in fixedpoint DSP. Results show that the theoretical error is manifested at the ERLE of the canceller.-this document investigates on the
PNLMS-BasedAlgo
- This work shows a PNLMS-based algorithm that incorporates other techniques for PNLMS to be less complex. MMax, SAG and Power-of-Two Quantization are considered in this hybrid of algorithms.
01278331
- Wavelet Tree Quantization for Copyright Protection Watermarking
ReseacrhOfAPPlieationOfEmbeddedSPeeehRecognitionon
- 本文首先介绍了目前语音识别的发展现状和主要手段,分析了语音识别中所采用的主要特征参数和比较前沿的研究方向,另外着重讲解了语音识别中最常用隐马尔可夫H(MM)模型,及应用广泛的矢量量化方法(VQ)。接着介绍了嵌入式平台,从软、硬件方面着重介绍了与语音识别相关部分的设计包括硬件及相关驱动程序设计,最后介绍了系统实现方法与测试结果。 -This paper describes the current status of the development of speech recognition a
UniformQuantization
- Uniform Quantization
Quantization
- This article tells about the Quantization used in approximations.
yuyinxinghaochulikejian
- 语音信号处理的课件,包含语音信号的短时分析、特征提取、矢量量化,语音编码、合成与识别.-Speech signal processing courseware, including short-time speech signal analysis, feature extraction, vector quantization, speech coding, synthesis and recognition.
2
- 多媒体信号的量化索引调制(QIM)数字水-Multimedia signal quantization index modulation (QIM) digital water ~~~~~~~~~
2
- 失真补偿量化索引调制水印的性能分析-Quantization index modulation watermarking distortion compensation performance analysis ~~~~~~~~~~
Distributed-Estimation-in-Energy-Constrained
- Abstract—In this paper, we consider distributed estimation of a noise-corrupted deterministic parameter in energy-constrained wireless sensor networks from energy-distortion perspective. Given a total energy budget allowable to be used by all s
work
- this file help to extract feature and then apply vector quantization to minimize the data
Efficient-LSP-quantization-algorithm
- 为在极低速率下实现高质量的语音编码,提出了一 种新的有效的线谱对( LSP)参数量化算法——P-RS- MSM Q 算法。此算法以多帧联合矩阵量化作为基本框架,引入了基 于超级帧模式的均值去除和帧间预测策略、 矩阵分裂和子矩 阵多级量化策略 同时提出了基于语音帧短时谱能量的帧 内加权和基于超级帧中各子帧重要性的帧间加权策略等。-Very low rates in high-quality speech coding, a new and effective LSP (LSP)
A-Fast-Encoding-Algorithm-
- 一种基于矢量量化的快速算法 一种基于矢量量化的快速算法-A Fast Encoding Algorithm for Vector Quantization
shiliang
- 基于矢量量化的视频图像压缩编码方法研究 基于矢量量化的视频图像压缩编码方法研究-Video image based on vector quantization compression method based on vector quantization compression method of video image
pcm
- 一。产生长度为500的零均值,单位方差的高斯随机变量序列,用均匀pcm的方法用16电平进行量化:1)求所得的SQNR,该序列的前5个值,相应的量化值和相应的码字。2)画出量化误差(定义为输入值和量化值之间的差),同时 画出量化值作为输入值的函数的图。3)用128量化电平数重做2)题, 比较结果。 二。产生一个长度为500,按N(O,1)分布的随机变量序列,分别用16,128量化电平数和u=255的u律非线性进行量化,画出每种情况下量化器的误差和输入-输出关系,并求SQNR. 三。长度为5
quantization
- this file is about quantization
LPC-and-Vector-Quantization
- LPC and Vector Quantization