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Description: 通信原理实验中的均匀和非均匀的pcm两种编码方式,附有详细的说明.-communication principle experiment uniform and non-uniform both PCM encoding, with detailed explanations.
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Size: 4096 |
Author: 刘云 |
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Description: 读取单通道pcm格式音频文件的程序，稍加修改即可作为读取较大音频文件并作相应处理，实际中笔者将该程序和其它程序结合，完成了许多先读取部分文件，在作后续处理的试验。-read channel PCM audio file format of procedures, little changes can be read as larger audio files and dealt with accordingly, in reality the author this program and other procedures, many completed the first reading some documents, as a follow-up to the test.
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Size: 1024 |
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Description: 这是一个将语音信号通过DPCM编码传输的仿真测试程序，内有详细注释，希望对大家有用。-This is a voice signal transmission through the DPCM code simulation testing procedures, with detailed notes, We hope that the right useful.
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Size: 1024 |
Author: sun |
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Description: 这是一个将语音信号通过PCM编码传输的仿真测试程序，内有详细注释，希望对大家有用。-This is a voice signal transmission through the PCM coded simulation testing procedures, with detailed notes, We hope that the right useful.
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Size: 1024 |
Author: sun |
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Description: 这个是用MATLAB中的SIMULINK做成的PCM编码器,使用MATLAB实现PCM编码和解码.-This is in SIMULINK with MATLAB made PCM encoder, the use of MATLAB realize PCM encoding and decoding.
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Size: 3072 |
Author: lijunjie |
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Description: 产生一个幅度为1和频率为1的正弦信号,用均匀pcm方法分别用8电平和16电平进行量化,在同一坐标轴上画出原信号和以量化信号,比较这两种情况下的sqnr.-Produce a range of 1 and a frequency of one of the sinusoidal signal with a uniform method pcm level and 8 were 16 to quantify the level in the same axis to draw the original signal and to quantify the signal, comparing the two cases The sqnr.
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Size: 9216 |
Author: 秦承峰 |
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Description: pcm均匀pcm与非均匀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。-pcm uniform pcm with a non-uniform pcm. Have a length of 500 zero-mean, unit variance Gaussian random variables with a uniform method of pcm level by 16 to quantify: 1) demand from SQNR, the sequence of the first five values, the corresponding quantization value and the corresponding code word. 2) draw quantization error (defined as the import value and quantify the value of the difference between), at the same time draw to quantify the value of the import value as a function of the map. 3) 128 to quantify the number of redo-level 2) title, the results of the comparison.
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Size: 4096 |
Author: jin |
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Description: RLS算法，编写了MATLAB程序实现自适应干扰对消。给出信号实例，用于验证所编写程序的性能。所给信号为：①噪声与语音的混合信号——signalnosie.wav；②噪声信号——noise.wav。两信号均为立体声，PCM压缩，采样速率为48000Hz，采样精度16bits。-RLS algorithm, the preparation of a MATLAB program to achieve adaptive interference cancellation. Given signal instance, prepared by the procedures used to validate performance. The given signal as follows: ① noise with the voice of mixed-signal- signalnosie. Wav ② noise signal- noise. Wav. Two signals are stereo, PCM compression, sampling rate of 48000Hz, the sampling precision of 16bits.
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Size: 948224 |
Author: 丁小天 |
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Description: simulator pcm with noise using matlab
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Size: 3072 |
Author: thanhhung |
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Description: PCM的编码端仿真程序,主要包括抽样\量化\编码三部分.用程序语言编写-PCM terminal emulation program code, including sample \ quantization \ encoding three parts. With the preparation of programming language
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Size: 3072 |
Author: 梁静 |
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Description: function pitchwatch(x,Ts)
Plot the pitch keys.
pitchwatch(x,[Ts])
:: Syntax
The array x is the input signal and Ts is the (optional) sampling period.
Example on use: [x,Fs] = wavread( Hum.wav )
pitchwatch(x,1/Fs)
:: Information
Make your own wav-files with the Windows Sound Recorder. Choose the attributes
PCM 8000Hz, 16bit, Mono when saving the wav-file-function pitchwatch(x,Ts)
Plot the pitch keys.
pitchwatch(x,[Ts])
:: Syntax
The array x is the input signal and Ts is the (optional) sampling period.
Example on use: [x,Fs] = wavread( Hum.wav )
pitchwatch(x,1/Fs)
:: Information
Make your own wav-files with the Windows Sound Recorder. Choose the attributes
PCM 8000Hz, 16bit, Mono when saving the wav-file
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Size: 99328 |
Author: michael4u2345 |
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Description: 包括了对不同通信系统的simulink仿真，如AM, DSB-SC, FM, PLL, Data Acquistion, Digital Data Transmission, PCM and Delta Modulation。通过这些可以帮助用户对通信仿真有更深的理解。-This project allows you to learn the communication systems in greater depth by giving you
the reins to play with it ! It contains the simulink files (*.mdl) which are block design
files of various communication systems such as AM, DSB-SC, FM, PLL, Data Acquisition, Digital
Data Transmission, PCM and Delta Modulation.
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Size: 2022400 |
Author: yinwenyi |
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Description: FCM,PCM聚类算法MATLAB程序
遗传FCM算法-FCM, PCM clustering algorithm FCM algorithm Genetic MATLAB program
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Size: 1024 |
Author: 王佳 |
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Description: 语音信号处理：This package encloses a small application dedicated to speech signal processing
at 8 kHz or 16 kHz. This application reads standard *.wav or *.pcm files through UI dialog box, plots and plays the signal with vertical dynamic crosshairs.-This package encloses a small application dedicated to speech signal processing at 8 kHz or 16 kHz. This application reads standard*.wav or*.pcm files through UI dialog box, plots and plays the signal with vertical dynamic crosshairs.
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Size: 327680 |
Author: 银杏 |
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Description: 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两大类，对数PCM中，2Aμ律和律编码都已被定为国际标准。-Matlab simulation using pulse code modulation (PCM) and the A law, μ law PCM codec for voice compression process.
Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding. The role of the encoder waveform is sampled signal sample quantization and coding. From the mathematical point of view, the process is to quantify the magnitude of the value of a continuous set of infinite number of maps into a finite number of discrete set of amplitude values , encoding is to use a set of binary digits, said after a limited number of these maps. By folding the International Standardization of PCM binary code, in line with long-distance telephone quality. According to the different quantitative methods, PCM can be divided into uniform quantization PCM PCM and the number of two categories, on the number of PCM in, 2Aμ law and legal codes have been designated as international standards.
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Size: 954368 |
Author: tanii |
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Description: PCM编码，matlab语音编写，对初学者很有帮助。-procedure of pcm coding,it is written with matlab language, it is usful.
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Size: 10240 |
Author: 吴贤音 |
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Description: pcm编码，符合中国国内的语音miu律压缩标准，绝对可运行-pcm encoding, in line with China' s domestic law of voice compression standards miu
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Size: 1024 |
Author: 李发军 |
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Description: modulation PCM with matlab
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Size: 4096 |
Author: triet |
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Description: PCM method segmentation with PCM in MAtlab
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Size: 109568 |
Author: samcoll |
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Description: pcm code with matlab
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Size: 2048 |
Author: sabahan |
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