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G.723语音编码介绍及优化 语音编码分成波形编码、参数编码和混合编码.波形编码就是语音信号形成的波形进行处理和加工,参数编码是以语音信号产生的数字模型为基础,...
G.723语音编码介绍及优化 语音编码分成波形编码、参数编码和混合编码.波形编码就是语音信号形成的波形进行处理和加工,参数编码是以语音信号产生的数字模型为基础,求出其模型参数,然后按照这些参数还原数字模型,合成语音。混合编码是综合了波形编码和参数编码的长处,在4-16kbps的速率上进行高质量的语音合成。例如多脉冲激励线性预测编码(MPLPC),码本激励线性预测编码(CELP)都是混合编码。-G.723 speech coding and optimization of voice introduced into coding waveform coding, coding parameters and mixed coding. Waveform voice signal is encoded form of waveform handling and processing, encoding parameters based on the voice signal to digital model based on its model parameters calculated, and then it these parameters reduction digital model, synthetic voice. Mixed coding is integrated waveform coding and coding parameters of the merits of the 4-without compromising the audio on the rate of high-quality speech synthesis. For example, multi-pulse Excited Linear Predictive Coding (MODIFIED), the Code Excited Linear Predictive Coding (CELP) are mixed coding.
- 2022-08-18 14:54:38下载
- 积分:1
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此示例演示如何使用知识产权辅助程序接口函数来操作反渗透…
This sample demonstrates the use of IP Helper API functions to manipulate the routing table.
- 2022-01-28 19:25:42下载
- 积分:1
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纯ALOHA协议
在该协议下,用户只要有帧产生,就会传送出去,发生冲突时,就等待一个随机时间后再重发。
所以对当前帧时,只有两种情况下可以发送成功:...
纯ALOHA协议
在该协议下,用户只要有帧产生,就会传送出去,发生冲突时,就等待一个随机时间后再重发。
所以对当前帧时,只有两种情况下可以发送成功:
1)当前帧时只有一帧要发送,且当前帧时的前一帧时无帧发送;
2)当前帧时只有一帧要发送(发送时刻为t),且前一帧时的最后一帧的发送时间不在(t- FRAMETIME)~ t这段时间内。
其他情况下都会产生冲突。
发生冲突时,错误帧继续传送,用户重新发送帧,设定一个随机数Rt,将该帧添加到第Rt/ FRAMETIME帧时上去,并设该帧的相对时间为Rt% FRAMETIME。这样即相当于用户等待一随机时间后重发。
对每一帧时进行上述控制,最终可得到成功发送的次数Suc,将其除以Suc = Suc /ARRAYLENGTH即得平均每帧时发送成功的帧数。
对于不同G,得到不同FrameArray,所得的Suc也不同,用一个数组来保存G与Suc的对应关系,再将其画出来。
-pure ALOHA agreement under the agreement, as long as users have a frame, it will transmit out, conflict, will wait for a random period of time before re-issued. Therefore, the current frame, there are only two circumstances can this success : 1) the current frame only one to send, and the current frame before one-time frame sent; 2) the current frame only to send a (t this moment), but before a final of a transmission time not (t-FRAMETIME) ~ t this time. Other cases will have conflict. Conflict, to continue to disseminate the wrong frame, users re-sending fram
- 2022-01-21 18:08:46下载
- 积分:1
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在网页中输入维吾尔文字的源代码,一般用于在网络上的输入框上输入维文文字。不用费事直接粘贴就可以用。...
在网页中输入维吾尔文字的源代码,一般用于在网络上的输入框上输入维文文字。不用费事直接粘贴就可以用。-Enter the text in Web pages Uighur source code, are generally used for the input box on the network on the input dimension and the body text. Would not have to directly paste can be used.
- 2022-01-31 11:11:03下载
- 积分:1
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vc++6.0,网络编程,实现局域网文件传输功能。
vc++6.0,网络编程,实现局域网文件传输功能。-vc++ 6.0, network programming, LAN file transfer function.
- 2022-02-09 16:55:00下载
- 积分:1
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VB.Net写的简单论坛.rar
VB.Net写的简单论坛.rar-VB.Net write a simple forum. Rar
- 2022-08-12 11:17:05下载
- 积分:1
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Microsoft VC++7.0 Change
具体使用解压后即可得知
Microsoft VC++7.0 Change
具体使用解压后即可得知-Microsoft VC 7.0 Change specific use to get unpacked
- 2022-10-31 14:55:03下载
- 积分:1
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famous LAN chat, file transfer tool! WINSOCK classic study code!
鼎鼎大名的局域网聊天、文件传输工具!
WINSOCK学习的经典代码!-famous LAN chat, file transfer tool! WINSOCK classic study code!
- 2022-02-18 14:34:17下载
- 积分:1
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WINSOCK VB EXAMPLE
THIS IS A PROGRAMME TO INITIATE A SIMPLE WINSOCK COMMUNICAT...
WINSOCK VB EXAMPLE
THIS IS A PROGRAMME TO INITIATE A SIMPLE WINSOCK COMMUNICATION,IT S A VB PROGRAM
- 2023-02-21 23:45:03下载
- 积分:1
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大名鼎鼎的indy控件组的示例程序 for delphi 7.0 有ftp udp,http 等的示例...
大名鼎鼎的indy控件组的示例程序 for delphi 7.0 有ftp udp,http 等的示例 -The example programs of well-known indy controls for delphi 7.0 have ftp, udp, etc.
- 2023-04-23 23:20:03下载
- 积分:1