搜索资源列表
aupcm_codec
- a-law u-law pcm间的转换,提供了快速实现这几种编码的转换方法 -a-law u-law pcm the conversion, the rapid realization of these various ways of coding
matlabpcmA13.rar
- 简单易懂的A-Law(13-segment) PCM的源代码,encode 的过程,适合初学者,Easy-to-read A-Law (13-segment) PCM source code, encode process, suitable for beginners
MATLAB
- 产生长度为1000的标准正太分布的随机信号,画出时域波形及频谱; 采用u=255的非均匀PCM编码,每符号为8bit,画输入-输出关系图; 计算信号量化噪声比(SQNR); 信道误码率为10-3; 解码,并画出u律反变换后的信号时域波形及频谱。 扩展要求: 采用均匀PCM、量化级数可变、信道误码率可变。 - have a standard len
audio_convert
- CCITT的g.723,g.721,g.729,pcm之间的编解码转换代码-CCITT' s g.723, g.721, g.729, pcm codec conversion code between the
PCM
- 利用Matlab仿真脉冲编码调制(PCM)及A律、μ律PCM对声音进行压缩编解码过程。 脉冲编码调制(PCM,Pulse Code Modulation)是一种将模拟语音信号转换成数字信号的编码方式。波形编码器的作用是对采样后的信号样本进行量化和编码。从数学上来看,量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合,编码就是用一组二进制数来表示这些映射后的有限数。国际标准化的PCM采用折叠二进制码,符合长途电话质量。根据量化方法的不同,PCM可分为均匀量化PCM和对数
PCM-encode
- 通过PCM脉冲编码调制、恢复、量化、译码等过程实现A律十三线折线近似的仿真-Through the PCM pulse code modulation, recovery, quantification, A-law decoding process to achieve such a line similar to the simulation of thirteen lines
dianpingzhuanma
- 关于PCM的编码程序,通过输入量化电平,给出经过A律13折线压缩的8位二进制码元,已经经过本人翻译。-On the PCM coding process, by entering the quantization level, is given through the law of 13 Line A compressed 8-bit binary code yuan, has been translated himself.
matlab5
- 低通信号抽样定理、13折线A律逐次比较型PCM编译码-Low-pass signal sampling theorem, 13 successive line A comparative law PCM codec
matlab
- 这组代码模拟了整个信号的编码,调制,解调,译码在无线通信,其中包括A-law扩展,PCM和的2PSK调制解调的技术过程。-This collection of codes simulates the whole signal encoding, modulation, demodulation, decoding process in wireless communication, which involves the techniques of A law companding, PCM, a
Pulse-Code-Modulation
- 脉冲编码调制(PCM,Pulse Code Modulation)是一种将模拟语音信号转换成数字信号的编码方式,从数学上来看,量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合,编码就是用一组二进制数来表示这些映射后的有限数。 国际标准化的PCM采用折叠二进制码,符合长途电话质量。根据量化方法的不同,PCM 可分为均匀量化PCM 和对数PCM 两大类,对数PCM中,A律和μ律编码都已被定为国际标准。 本程序实现了A律、μ律以及均匀量化三种PCM,
alaw_pcm
- PCM与A-LAW PCM的相互转换程序-PCM & A-LAW PCM conversion
pcm
- PCM编码/解码的实现,采用A律13折法进行量化和编码/解码。-PCM encoding/decoding implementations, using A-law 13 to quantify the folding and encoding/decoding.
2-AudioG711
- 基于5509的语音信号编解码( G711 Alaw编解码程序)-PCM to A law
PCM
- 运用MATLAB语言,进行非均匀PCM量化编码。产生一个长度为500,按N(0,1)分布的随机变量序列。用64量化电平和μ=255的μ律非线性,画出量化器的误差和输入输出关系。-Using MATLAB language, non-uniform quantization PCM coding. Produces a length of 500, according to the sequence of random variables N (0,1) distribution. With 64
PCM_ALaw_EncodeAndDecode
- This a PCM A Law Encode And Decode Programme! It is very useful for user in voice coding!
pcm
- PCM编译码实验,自己通信原理的实验。对正弦信号进行抽样、量化和A律PCM编码,经过传输后,接收端进行PCM译码-PCM codec test their own communication principle experiment. Sinusoidal signal sampling, quantization and A-law PCM coding, after transmission, the receiving end PCM decoding
PCM
- 运用MATLAB语言,进行非均匀PCM量化编码。产生一个长度为500,按N(0,1)分布的随机变量序列。用128量化电平和 的 律非线性,画出量化器的误差和输入输出关系。-Using MATLAB language, non-uniform quantization PCM coding. Produce a length of 500, according to the sequence of random variables N (0,1) distribution. With 128 qu
PCM
- Implementation and Signal to Quantize noise ratio (SQNR) in Pulse code modulation using Matlab. Also compared A-law, u-law, companding.-Implementation and Signal to Quantize noise ratio (SQNR) in Pulse code modulation using Matlab. Also compared A-la
pcm A律
- pcm编码A律Simulink和MATLAB(PCM in the communication system to complete the voice signal digital function, and its implementation mainly includes three steps to complete: sampling, quantization, coding. The binary representation of time discrete, amplitud