搜索资源列表
dct.rar
- 已知两个不同图像块亮度数据如下： （1）分析DCT原理，采用DCT方法，编程并计算相应的DCT系数，分析系数分布特点。 （2）依据视觉特性分析量化表步长的分布特点，完成DCT系数量化。 （3）采用Z形扫描，实现输出数据的统计编码，形成Video stream。 （4）采用IDCT重建图像亮度数据，计算SAD大小，分析产生误差的原因及采用DCT进行数据压缩的原理。（ ） （5）分别利用左上角1、3、6个系数重建图像，计算相应的SAD，并由
PEAQ
- 利用matlab实现的PEAQ程序,即ITU R BS1387-1.-a implention of PEAQ use matlab
mpeg_play-2.3-src.tar
- Berkeley Plateau Research Group MPEG-1 player sources
Matlab_MPEG_1_2_8
- 实现MPEG-1标准中心理声学模型I的具体计算过程。-To achieve the standard MPEG-1 psychoacoustic model I in the specific calculation process.
mp3read
- function [Y,FS,NBITS,OPTS] = mp3read(FILE,N,MONO,DOWNSAMP,DELAY) MP3READ Read MP3 audio file via use of external binaries. Y = MP3READ(FILE) reads an mp3-encoded audio file into the vector Y just like wavread reads a wav-encoded file (one ch
fabryparot4project
- calculate the band of Fabry-Parot Filter -A Fabry-Parot Filter consist of the cavity formed by two highly reflective mirrors placed parallel to each other , as shown in the figure 1.The input light beam to the filter enters the first mirror at right
H.264
- 新一代视频压缩编码标准H[1].264(毕厚杰)-H.264 stantard
MPEG-Audio
- This is an implementation of the MPEG psychoacoustic model 1, layer I, for MATLAB. It has been tested on MATLAB 5.2 running on Windows NT.
1
- 用于视频文件转化成jpg文件，同时并将它们在转成video文件，有利于刚学习视频文件人员学习-video
harmonic
- 由给定的谐波分量相对强度生成音符，用于乐器模拟、MIDI制作等- HARMONIC Generates a note with its harmonic wave HT=harmonic(soundname,tone,k,type) Generate a note with its harmonic wave in given tone, simulating particular type of musical instrument type=[basi
G729coder
- G.729音频压缩、解压缩到Matlab程序。使用方法详见readme文档。-Descr iption Most of G.729 source code is written in C.But this one is written in matlab. follow these steps to use it: 1.To coder a speech(ensure it as a row vector variable in matlab),simply type
sw
- 1。访问在任何需要的帧所需像素 2。执行像素逐相对于第一帧帧差分像素 3。申请分类阈值 4。执行像素按有关透水框架像素帧差分 5。结合阈值的像素结果由像素帧差分-1. Access any desired pixel in any desired frame 2. Perform pixel-by-pixel frame differencing with respect to the first frame 3. Apply classification thresho
noisetracking
- 包含M文件，培训和跟踪落实的噪音中描述的算法： [1] J.S.厄克伦斯和R. Heusdens，“非平稳噪声跟踪基于数据驱动的递归噪声功率的估计”，IEEE期刊。音频，语音卷。 16，第6页。1112年至1123年，2008年8月。 见Descr iption.doc在zip文件。-Contains m-files to train and implement the noise tracking algorithm described in:
G.723.1_2010_02_10
- 这个包实现了ITU - T的G.723.1语音编码器和解码器在Matlab。该方案的目标是提供一个良好的记录和模块化设计方案，实验和研究，以方便使用为基础的实际编码器。 编码器实现了G.723.1的多脉冲模式（在6.3 kb / s的运行）。解码器可以解码的5.3 kb / s的，在6.3 kb的多脉冲/秒，连续传输，数据包丢失隐藏）编码器（所有的ACELP方式。 该编码器和解码器之间的标准接口是位文件（同位文件由ITU - T参考代码产生兼容）。第二
wen2-(1)
- it is a matlab code for audio gain controller
mushram-1.0
- 音频主观评价的应用软件，需先用matlab编译即可使用-audio subjective evaluation
Chapter_2[1]
- LPC sample code for matlab
peaqb-1.0.beta.tar
- this a matlab for the PSNR. In this .m I have been using the PSNR to evluate the quality of the audio quality. Its a very useful way to do it.-this is a matlab for the PSNR. In this .m I have been using the PSNR to evluate the quality of the audio qu
第1章 MATLAB操作基础
- matlab操作基础讲义，介绍了基础内容(matlab fundation for learning)
短时平均过零率
- 读入语音文件bluesky1.wav（内容为“蓝天，白云，碧绿的大海”）中的数据，进行分帧处理，然后计算其短时平均过零率。(Read the data from the voice file bluesky 1. wav (blue sky, white clouds, green sea), frame it, and calculate its short-term average zero-crossing rate.)