语音数据包大小和语音活动检测的作用 [4]
论文作者:www.51lunwen.org论文属性:作业 Assignment登出时间:2016-05-11编辑:lily点击率:10922
论文字数:2548论文编号:org201605061540098413语种:英语 English地区:澳大利亚价格:免费论文
关键词:语音信息数据包信号转换
摘要:本文介绍了使声音信号传输不失真的新技术VoIP技术,详细介绍了利用本技术将模拟信号传化为数据信号,再打成数据包,通过网络进行传输保存纯净语音的过程。
SIZE IS 4msec AND CODING RATE IS 64Kbps. The name of the coding scheme is G.711. and we will run the simulation for 900 second by taking the packet size 1 and we will run the same simulation for the other one by making the speech activity disabled .
THIS SHOW THE GRAPH OF THE VOICE PACKET DELAY VARIATION FOR SPEECH ACTIVITY DETECTION ENABLED AND DISABLED ONES
VOICE PACKET DELAY VARIATIONÂ FOR SPEECH ACTIVITY ENABLED
VOICE PACKET DELAY VARIATIONÂ FOR SPEECH ACTIVITY DISABLED
SIMULATION TIME
SPEECH ACTIVITY DETECTION
SIZE OF VOICE PACKET
AVERAGE VALUES OBTAINED FROM GRAPH
900 seconds
ENABLED
1
0.00199
900 seconds
DISABLED
1
0.717163
THIS SHOW THE GRAPH OF THE VOICE PACKET END-END DELAY VARIATION FOR SPEECH ACTIVITY DETECTION ENABLED AND DISABLED ONES
VOICE PACKET END-END DELAY VARIATIONÂ FOR SPEECH ACTIVITY ENABLED
VOICE PACKET DELAY END-END VARIATIONÂ FOR SPEECH ACTIVITY DISABLED
SIMULATION TIME
SPEECH ACTIVITY DETECTION
SIZE OF VOICE PACKET
AVERAGE VALUES OBTAINED FROM GRAPH
900 seconds
ENABLED
1
0.07437
900 seconds
DISABLED
1
3.213397
THIS SHOW THE GRAPH OF THE THROUGHPUT FOR SPEECH ACTIVITY DETECTION BETWEEN ENABLED AND DISABLED ONES
POINT TO POINT THROUGHPUT FOR SPEECH ACTIVITY ENABLED
POINT TO POINT THROUGHPUT FOR SPEECH ACTIVITY DISABLED
HERE WE ARE CALCULATING THE THROUGHPUTVALUES OF THE ENABLED ONES AND DISABLED ONES THE THROUGHPUTÂ GIVES US THE INFORMATION ABOUT THE DELIVERY OVER A COMMUNICATION CHANNEL. AND HERE WE ARE THE VALUES OF THE THROUGHPUTFROM THE GRAPH WE CAN UNDERSTAND THAT IF THE SPEECH ACTIVITY IS DISABLED THE USAGE OF THE BANDWIDTH IS HIGH AND THE PERCENTAGE OF THE OVERHEAD IS HIGH. DUE TO THIS THE STREGTH OF THE CONNECTION WILL GET WEAK. AND IF THE CONSUMPTION OF NTHE BANDWIDTH IS HIGH MEANS THENÂ TRAFFIC IS ALSO HIGH WHICH LEADS TO THE CONGESTION. AND THE ROUTER CANNOT BEAR THE TRAFFIC AND AUTOMATICALLY THE LINK WHICH WAS THERE BETWEEN THE NODES WILL BE TERMINATED WHICH RESULTS IN THE LOSS OF DATA.DUE TO THIS QUALITY OF SERVICE IS REDUCED.
SIMULATION TIME
SPEECH ACTIVITY DETECTION
SIZE OF VOICE PACKET
AVERAGE VALUES OBTAINED FROM GRAPH
900 seconds
ENABLED
1
228Kbps
900 seconds
DISABLED
1
107Kbps
POINT TO POINT THROUGHPUT FOR SPEECH ACTIVITY ENABLED
POINT TO POINT THROUGHPUT FOR SPEECH ACTIVITY DISABLED
THE ABOVE GRAPH SHOWS THE UTILIZATION OF THE BANDWIDTH WHEN THE SPEECH DETECTION ENABLED AND DISABLED here the utilzation of the bandwidth for disabled packet is high and enabled packet is lowfrom this we can understand this that by using the speech activity detection we can send the data at a faster rate in low time with the low bandwidth which results in the low traffic.
SIMULATION TIME
SPEECH ACTIVITY DETECTION<
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