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yinpintongxin
- 本程序是一个基于Visual C++的很好的语音通信实例,只要稍微修改即可作为工程应用,有很高的使用价值-this is a process based on Visual C is a good example of the Speech Communication, As long as can be modified slightly as the project application, a high value
ADPCM_code
- DPCM是differential pulse code modulation的缩写,也就是差分脉冲编码调制的意思。他的主要思想是通过已知的数据预测下一个数据,然后传递预测值与实际值之间的差值。-DPCM is a differential pulse code modulation acronym, that is, differential pulse code modulation mean. His main idea is known to the data through a dat
Amr
- 移动增值业务,主要介绍彩信方面的知识,AMR。彩信的一些基本知识,对于移动增值开发工程师有很大的帮助。-Mobile value-added services, mainly introduce MMS knowledge, AMR. Some basic knowledge of MMS for the mobile value-added development engineer has a great help.
sourcecode
- 这是一个P2P语音软件源代码,采用服务器、客户端模式,具有很高的应用价值。-This is a P2P voice software source code, the use of server, client mode, a high application value.
G.726.ADPCM.C
- G.726 ADPCM算法在C语言上的实现代码,对研究与开发和ADPCM相关有很大的参考跟实用价值-G.726 ADPCM algorithm in C language code for ADPCM-related research and development and have great practical value with reference
DTMF5410
- DTMF 编解码器在编码时将击键或数字信息转换成双音信号并发送,解码时在收到的DTMF 信号中检测击键或数字信息的存在性.采用ccs2.2开发。运行在DES5410APP-U开发版上。 子程序_start_ac01,完成AD 及DSP 的多通道缓冲串口(McBSP)初始化。 子程序_iir_to_dtmf,通过由函数set_freq_coff()初始化的系数,分别迭代运算产生行 频和列频,该子程序计算出的两个频率信号样本值分别放入累加器a 和b,相加之 后作为新的一个音频样本发送
T-REC-G.711-200911-I!Amd2!SOFT-ZST-E
- G.711使用64Kbps的带宽,可将14bits转换成8bits。目前G.711有两个编码方式,A-law以及Mu-law。-G.711 defines two main compression algorithms, the µ -law algorithm (used in North America & Japan) and A-law algorithm (used in Europe and the rest of the world). Both are logarith
PCMCoder
- MFC界面下实现PCM编码,采用A律13折现编码规则,可自定义输入值范围。-MFC interface PCM encoded using A-law the 13 discounted encoding rules, the the custom input value range.
PESQ
- PESQ语音质量测试工程.主要用于测试修改或者经过编码压缩或者信息隐藏的音频文件和原始音频文件在声音质量上的区别.得到的值越大表示两个文件差异越小-PESQ voice quality testing project is mainly used to test modifications or through coding or information hiding audio files and raw audio files on the sound quality difference
yinpingshiyan
- 分别取长度N=160和N’=N+K的矩形窗函数作用于语音信号上,首先对其进行中心削 波,比较削波前和削波后语音信号波形,并使得削波后的信号进行乘积并求和,计算延迟为0<K<160时的相关值,并且用得到的相关值来检测语音信号的基音周期,用MATLAB画出图形。 -Length N = 160 were taken and N = N+ K rectangular window function in the role of the speech signal, the f
num2gray
- 二进制数转格雷码程序,输入一个二进制数,直接输出该二进制数的格雷码及其对应的十进制的数值-Binary Gray code value transfer program, enter a binary number, the direct output of the binary Gray code and its corresponding decimal
LPC-based-speech-signal-processing
- 本程序利用MATLAB对信号进行分析和处理,主要就是进行语音线性预测通过使实际语音抽样值与线性预测抽样值的均方误差达到最小,可以确定唯一的一组线性预测系数。-This procedure using MATLAB for signal analysis and processing, mainly for voice linear prediction by the actual voice sampling error of the mean square value and the mini
