Location:
Search - delay buffer
Search list
Description: NIST Net – A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable channel parameters such as packet loss ratio, jitter, bandwidth variation, delay, and network buffer size. To simulate different network environments
Platform: |
Size: 2309412 |
Author: 北科 |
Hits:
Description: NIST Net – A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable channel parameters such as packet loss ratio, jitter, bandwidth variation, delay, and network buffer size. To simulate different network environments-NIST Net- A Linux-based Network Emulation Tool, It is a raw IP packet filter with many controllable channel parameters such as packet loss ratio, jitter, bandwidth variation, delay, and network buffer size. To simulate different network environments
Platform: |
Size: 2309120 |
Author: 北科 |
Hits:
Description: 互信息法求混沌序列的最优时延
文件说明：
1、Mutual_Information_main.m 主文件，直接运行此程序即可
2、LorenzData.dll 产生Lorenz离散序列
3、Mutual_Information.dll 互信息函数
4、buffer.dll 缓存文件-Mutual information method for optimal time-delay chaotic sequence document describes: 1, Mutual_Information_main.m master file, run this program directly to 2, LorenzData.dll generated Lorenz discrete sequence 3, Mutual_Information.dll mutual information function 4, buffer.dll cache file
Platform: |
Size: 16384 |
Author: ZhengKevin |
Hits:
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 |
Hits:
Description: buffer delay vhdl model
Platform: |
Size: 1024 |
Author: gnomix |
Hits:
Description: 滤波器函数，包括圆延迟，使用圆延迟线的FIR滤波器-circular delay，FIR filter using circular delay-line buffer
Platform: |
Size: 2048 |
Author: 王韵 |
Hits:
Description: 是一款非常优秀的局域网和互联网P2P点播软件系统, 采用最先进P2P内核, 完美实现P2P视频点播功能，P2P流媒体技术节省大量服务器带宽. Nat Traversal技术, 穿透90％以上内网, 并支持RMVB/RM/ASF/WMV/FLV/MP3格式流媒体实现无缓冲播放, 拖拽延时在秒级范围内. 将极速托拽和P2P算法完美的结合了起来. 为了支持电信级别的视频服务, 还提供了负载均衡服务器和(CDN)缓存服务器, 视频广告发布接口等专业功能. 大型商业客户可以利用WebPlayer9 P2P视频播放系统实现低成本、 高可靠性、 可伸缩性、易管理的视频服务网络软件架构-Is a very good LAN and the Internet P2P on-demand software system, using the most advanced P2P core, the perfect realization of P2P video-on-demand capabilities, P2P streaming media technology to save a lot of server bandwidth. Nat Traversal Technology, more than 90 penetration within the network, and support RMVB/RM/ASF/WMV/FLV/MP3 buffer-free streaming media format, playback, drag-second delay in the range. will speed drag, and a perfect combination of P2P algorithms up. In order to support the telecommunications level of video services It also provides load-balancing servers, and (CDN) cache server, video advertising and other professional functions interface. large commercial customers can take advantage of WebPlayer9 P2P video playback system to achieve low cost, high reliability, scalability, easy management of networks for video services Software Architecture
Platform: |
Size: 1908736 |
Author: 王辉 |
Hits:
Description: Implementation of a speech codec based on coding of speech at 8 kbit/s
using conjugate-structure algebraic-code-excited linear-prediction (CS-ACELP)
- We took .wav files that is sampled at 8000 Hz using 16-bit linear PCM. The encoding process is done every 10ms frame or 80 samples. For the preprocessing stage, the samples are high passed with cut-off frequency of 140 Hz and scaled down by 2. A total of 240 samples are buffer for windowing and autocorrelation computation. The autocorrelation coefficients are used to calculate the LP filter coefficients using the Levinson-Durbin algorithm. The LP filter coefficients are converted to Line Spectral Pair (LSP) coefficients. LSP coefficients are converted back to the LP filter coefficients, which is just the reverse process of the conversion from LP to LSP. This module is exactly what the decoder will need in order to convert the LSP coefficients to LP coefficients. We decided not to implement the LSF quantization module because we did not have the codebook information when we designed our system.
The open-loop pitch delay is calculated first for each frame. Then the closed-loop pitch
Platform: |
Size: 40960 |
Author: coco |
Hits:
Description: 用TCP 和UDPprotocol来传输数据，具体请见英文描述-Introduction
In this assignment, you will build a client for a simple streaming transport protocol.
Media streams such as compressed video or audio are typically delay and jitter sensitive-
real-time conversations require 100 ms or less round-trip delay and human ear is very
sensitive to irregular sampling in audio. The long delay imposed by retransmission makes
Transmission Control Protocol (TCP) an unlikely candidate to carry media streams.
Fortunately, with proper error concealment, human perception is not very sensitive to
data loss in video and audio. Thus, User Datagram Protocol (UDP) is commonly
employed to transport media streams. However, there are many problems with UDP-
delay jitter, out-of-order arrival and packet loss. A commonly used technique is to buffer
up some packets to obtain a smoother play-back in the expense of some small delay. An
example is given by the following diagram:
As packet arrives from the network, the stream transport layer will delay the
Platform: |
Size: 3072 |
Author: Mengmei Liu |
Hits:
Description: 延时渲染，首先准备N个与屏幕同大小的纹理作为渲染缓冲区，接下来向这个纹理渲染东西，一般用FBO，渲染的时候，把每个象素最终的法线值、位置、纹理信息分别渲染到这N个纹理中。这是第一次渲染。然后第二次渲染的时候，把之前得到的纹理中的值作为光照计算的输入值来计算光照。-Delay rendering, the first screen for N-and render the same size as a buffer texture, the next thing to render the texture, the general use of FBO, render time, the normal end of each pixel value, position, texture information N, respectively, rendering a texture to this. This is the first rendering. Then, when the second rendering, the texture before the value obtained by calculating the input value as a light to calculate the light.
Platform: |
Size: 396288 |
Author: wz |
Hits:
Description: 仿真螺旋交织器系统。要求将得到的整数序列放置在三个工作空间中并输出值。观察交织后数值的可视化变化规律。螺旋交织器模块参数：螺旋排列列数3；组的大小2；螺旋排列的跳步1；初始条件0。螺旋解交织器参数设置同螺旋交织器。斜坡函数模块参数：斜率1；开始时间0；初始输出1；矢量参数一维。缓存器参数：输出缓存长度6；缓存交叠0；初始条件0。仿真系统中的时延参数为7。-Simulation of helical interleaver system. Requirements will be placed in the three integer sequences and the output value of the workspace. Values observed after mixed visual variation. Helical interleaver module parameters: the number of columns 3, spirally arranged group size 2 spiral arrangement of jump 1 initial condition 0. Deinterleaving parameters set screw with helical interleaver. Ramp function module parameters: slope 1 start time 0 initial output 1 one-dimensional vector parameter. Buffer parameters: the length of the output buffer 6 cache overlap 0 initial condition 0. Delay parameter in the simulation system 7.
Platform: |
Size: 3072 |
Author: 谭杰龙 |
Hits:
Description: increases too.
All the above led to very interesting conclusions. For applications that end- to- end delay
is very important and when reliability can be afforded to be(95-98 ) at maximum, lower
buffer can be selected. This is contradictory to the conventional
Platform: |
Size: 135168 |
Author: Shajib |
Hits:
Description: pear to be accurate enough in case MAC reliability is not used as when packet
drops occurs due to collisions buffer drains and size is decreased. Well known schemes
use a combination of channel utilization and buffer occupancy, as seems to be the most
effective method. Fidelity measurement at the sink is also used but is more slow method,
as end-to-and and processing delay is added at the sink.
Talking for Feedback methods local ones are most frequently used as transient
congestion problems are most usual in wireless sensor networks and quick reaction is
needed in these situations.
Control Methods used in different schemes is the most important part. The u
Platform: |
Size: 136192 |
Author: Shajib |
Hits:
Description: 1：支持串口数据16进制格式收发。
2：支持9以上的串口通信。
3：支持自动收发保存数据。
4：自由控制数据显示。
5：实时显示收发数据字节大小以及串口状态。
6：智能清空缓冲数据。
7：采用polling模式，以便移植到linux。
8：全中文对话框。
9：数据收发精准，增加延时处理。
10：支持短信猫调试，智能识别回车符。
11：界面清爽，布局人性化。
-1: Support for sending and receiving serial data in hexadecimal format.
2: Support for 9 or more serial communication.
3: Support for automatic send and receive data.
4: free control data.
5: Real-time display as well as send and receive serial data byte size of the state.
6: Smart buffer empty data.
7: The polling mode, in order to migrate to linux.
8: All Chinese dialog box.
9: send and receive data accuracy, increase the delay processing.
10: Support SMS cat debugging, identification carriage return.
11: The interface is refreshing, user-friendly layout.
Platform: |
Size: 80896 |
Author: |
Hits:
Description: 1：支持串口数据16进制格式收发。
2：支持9以上的串口通信。
3：支持自动收发保存数据。
4：自由控制数据显示。
5：实时显示收发数据字节大小以及串口状态。
6：智能清空缓冲数据。
7：采用polling模式，以便移植到linux。
8：全中文对话框。
9：数据收发精准，增加延时处理。
10：支持短信猫调试，智能识别回车符。
11：界面清爽，布局人性化。
-1: Support for sending and receiving serial data in hexadecimal format.
2: Support for 9 or more serial communication.
3: Support for automatic send and receive data.
4: free control data.
5: Real-time display as well as send and receive serial data byte size of the state.
6: Smart buffer empty data.
7: The polling mode, in order to migrate to linux.
8: All Chinese dialog box.
9: send and receive data accuracy, increase the delay processing.
10: Support SMS cat debugging, identification carriage return.
11: The interface is refreshing, user-friendly layout.
Platform: |
Size: 82944 |
Author: |
Hits:
Description: 主要功能为，从USB总线读取延时参数，单片机延时发送内存缓冲区的一个字节数据到USB总线，每传送一个字节数据查询USB总线是否有停止USB总线通信命令，如有停止USB总线通信命令，则重新开始检查串口握手信号，开始下一次USB总线通信。
-Main function is to read from the USB bus delay parameters, single-chip delay sending a byte of data memory buffer to the USB bus, send a byte of data queries USB bus stop USB bus communication command, if any, to stop the USB the bus communication command, then re-start check the serial handshake signals to start the next USB bus communication.
Platform: |
Size: 1024 |
Author: zhangming |
Hits:
Description: ：构建了多信息感 辅f】JJ的网络遥操作机器人系统，该系统提供丫一种通过多信息感知手段辅助操作
肯决策的远程控制方式．尚 ，分卡斤J q络条件下遥操作机器人系统多信息感知的原理．该多信息包括机器人多传
感器和网络返 时延等信息．通过对这些多信息的预处理、分类和决策处理，将陔多信息以视觉、听觉、力觉、报警灯
和交瓦史本方式转化为人可感 』的信息．使用 络时延缓冲器和网络双连接，降低了网络可变时延对系统的影响．
最 ，长距离的网络遥操作实验验证r系统和控制策略的实用性和骨效性-: Construction of a multi-sense auxiliary f] JJ network telerobot system, the system to provide the Ah a perception through a multi-information decision-making means auxiliary operations Ken remote control way. Still, points card the telerobot system under multi-jin J q network conditions the principle of information perception. The multi-information including multi-robot sensor and network back to delay. Visual, auditory, haptic and more information of these pre-processing, multi-information classification and decision-making process, Gai, the alarm lights and cross watts history of this way into a human sense " . Network delay buffer and network connections, and reduce the impact of network variable delay system. The most long-distance network teleoperation experiments verify the practicality of the system and control strategy of r and bone effectiveness
Platform: |
Size: 696320 |
Author: caowenming8 |
Hits:
Description: 为抵消网络可变时延对遥操作系统的影响,基于一种新的改进型Smith预估器,
构建了预估控制下的网络实时遥操作移动机器人系统. 该系统根据主、从端传感器交换的
信息,通过动态模型管理器及其算法,保证了主、从端模型的一致性. 文中根据端到端数据
包多个到达的特性,提出了新的时延缓冲器管理算法,从而更好地将可变时延转化为常时
延. 为了增强系统控制的实时性,系统中还引入了模型的虚拟显示. 长距离的网络遥操作
实验验证了文中系统和控制策略的实用性及有效性.-Estimated under the control of the network to offset the impact of the network variable delay teleoperation system, based on a new modified Smith predictor, build real-time mobile robot teleoperation system of the system according to the Lord, from the end of the sensor exchange information manager by the dynamic model and its algorithm to ensure that the primary end model of consistency in the text according to the characteristics of the end-to-end packet multiple reaches proposed delay buffer management algorithms to better to the variable delay conversion of a constant delay also introduced the virtual display of the model in order to enhance the real-time system control, system and network of long-distance teleoperation experiments verify the practicality and effectiveness of the system and the control strategy .
Platform: |
Size: 1296384 |
Author: caowenming8 |
Hits:
Description: Initialises the reverb module. The delay buffer size is configured for the sample rate and the speaker type.
Platform: |
Size: 4096 |
Author: cerpouhen |
Hits:
Description: 关于抖动缓冲区 jitterbufer的一篇论文-Characteristics of network delay and delay jitter and its effect on voice over IP
Platform: |
Size: 420864 |
Author: 冯月白 |
Hits: