Description: DSB-SC信号的生成与解调 1) 用离散（DSP）的方法生成DSB信号 2) 载波频率为150KHz，音频为500Hz和2000Hz的混合音。 3) 加入高斯白噪声 （4） 语音信号 的传输。 改变抽样频率和量化台阶大小，观察重建信号以及量化噪声信号的波形；对于语音信号主观评价声音质量的变化。 -DSB-SC signal generation and demodulation 1) Discrete (DSP) methods to generate DSB signal 2) the carrier frequency to 150KHz, audio 500Hz and 2000Hz for the mixed tone. 3) by adding white Gaussian noise (4) transmission of voice signals. Change the sampling frequency and quantization step size, to observe the reconstruction of signal and quantization noise signal waveform for subjective evaluation of the speech signal changes in sound quality. Platform: |
Size: 28961 |
Author:doucuole@126.com |
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Description: 合成语音质量的客观评价，包括信噪比，倒谱距离，平均值等。用matlab程序实现。-Synthesis of an objective evaluation of voice quality, including signal to noise ratio, cepstral distance, average and so on. Using matlab program. Platform: |
Size: 2048 |
Author:王利 |
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Description: PESQ，用于语音质量评价的客观标准，本论坛已有的是MATLAB源码，现在上载的是标准C代码！-PESQ, for an objective evaluation of voice quality standards, this forum is the MATLAB source code has now uploaded the standard C code! Platform: |
Size: 38912 |
Author:junyong |
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Description: 语音质量客观评价的一些论文资料，以pesq方面的为主-Objective evaluation of voice quality papers information to the main aspects of PESQ Platform: |
Size: 2198528 |
Author:陶凯 |
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Description: 模拟信号的数字化传输---增量调制系统
用SIMULINK建立简单增量调制系统的模型并进行
（3） 正弦信号
（4） 语音信号
的传输。
改变抽样频率和量化台阶大小，观察重建信号以及量化噪声信号的波形；对于语音信号主观评价声音质量的变化。
-Digitized analog signal transmission systems--- delta modulation delta modulation SIMULINK easy set up of the model system and (3) sinusoidal signal (4) transmission of voice signals. Change the sampling frequency and quantization step size, to observe the reconstruction of signal and quantization noise signal waveform for subjective evaluation of the speech signal changes in sound quality. Platform: |
Size: 6144 |
Author:Ryan |
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Description: DSB-SC信号的生成与解调
1) 用离散（DSP）的方法生成DSB信号
2) 载波频率为150KHz，音频为500Hz和2000Hz的混合音。
3) 加入高斯白噪声
（4） 语音信号
的传输。
改变抽样频率和量化台阶大小，观察重建信号以及量化噪声信号的波形；对于语音信号主观评价声音质量的变化。
-DSB-SC signal generation and demodulation 1) Discrete (DSP) methods to generate DSB signal 2) the carrier frequency to 150KHz, audio 500Hz and 2000Hz for the mixed tone. 3) by adding white Gaussian noise (4) transmission of voice signals. Change the sampling frequency and quantization step size, to observe the reconstruction of signal and quantization noise signal waveform for subjective evaluation of the speech signal changes in sound quality. Platform: |
Size: 28672 |
Author:Ryan |
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Description: 当IP语音包的网络时延抖动较小时，一般的语音缓冲算法可以得到较好的语音质量。当网络中存在突发大时延时，就会出现极大丢包率或极大端到端时延，从而难以获得好的语音质量。为此，提出针对突发大时延下的自适应语音缓冲算法。通过估算网络平均时延和学习语音包经过的网络路径上的状态，来确定需要控制端到端时延大小和语音包的丢包率，动态调整Jitter Buffer队列的最小深度和最大深度，从而可以尽量减小语音裂缝（gap）的出现。通过基于听觉模型的客观音质评价（PESQ）仿真计算以及在实际语音网关设备中的应用表明算法对语音通信质量有一定的改善作用。-The continuous playout of voice packets in the presence of variable network delays is often achieved by buffering the received voice packets for sufficient time. Basic jitter buffering algorithms can work well only when the delay does not spike status of the networks, is presented to promote the quality of voice communication. It timely adjusts the minimal and maximal depth of buffer queue according to the control target of end-to-end delay and packet loss rate. The algorithm can much more easily achieve the continuous playout because it plays voice packet at a fixed inter-play time in the most time of a talk-spurt. The control target of packet loss rate can be extended to 20 . However, the basic algorithms can only bear 5-10 of the packet loss rate. Perceptual evaluation of speech quality(PESQ) is applied to assess the speech quality in the simulation. It is shown that the algorithm can obviously promote the quality of voice communication in IP networks with spike delay. The practic Platform: |
Size: 329728 |
Author:瞿志超 |
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Description: PESQ是语音感知质量评价，是2001年国际电信联盟推出的评价语音的主观试听效果-PESQ is a perceptual quality evaluation, the International Telecommunication Union in 2001 introduced a subjective evaluation of voice audition results Platform: |
Size: 39936 |
Author:tang |
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Description: 语音增强结果评价框架，其中包括四种语音质量评价方法：信噪比SNR，分段信噪比segSNR，对数谱失真LSD，PESQ。还包括生成设定信噪比语音文件的m文件。也适用于其他领域的语音质量评价。-The speech enhancement results evaluation framework, including the four speech quality assessment method: the SNR signal to noise ratio, segment the SNR segSNR, and the number of spectral distortion of LSD, the PESQ. Also includes the generation of m-files to set the signal to noise ratio voice files. Also applies to other areas of speech quality assessment. Platform: |
Size: 663552 |
Author:刘风 |
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Description: PESQ，用于语音质量评价的客观标准，本论坛已有的是MATLLAB源码，现在上载的是标准C代码！ 可直接使用。 已通过测试。
-The PESQ for voice quality evaluation of objective criteria, already in this forum MATLLAB source now uploaded the standard C code! Can be used directly. Has been tested. Platform: |
Size: 38912 |
Author:wzzling |
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Description: 评价MATLAB的语音质量，易于使用？镆组合柿子膍张couurantyne atlab ，使用,可以直接使用。
-Evaluation of MATLAB voice quality, easy to use? Mo combination persimmon Pi Zhang couurantyne atlab, can be used directly. Platform: |
Size: 253952 |
Author:nu |
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Description: 教师评价系统是一套为提高教师的教学质量，反馈学生的心声，提高学校教务管理能力的系统。针对各专业所授课程及教师的评价结果，直观的统计出每位教师的综合能力......
系统后台:http://网站地址/admin/login.asp是登陆页面
帐号和密码都是admin
-Teacher evaluation system is set to improve the teaching quality of teachers, the feedback of the voice of the students, and improve the ability of school educational administration system. Evaluation results for various professional courses and teachers, comprehensive ability of each teacher ... intuitive statistical system background: http:// website address/admin/login.asp landing page username and password is admin Platform: |
Size: 249856 |
Author:DSGD5088 |
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