Speech quality as a function of IP network performance

被引：0
|
作者：
Cermak, GW [1 ]
机构：
[1] GTE Labs Inc, Waltham, MA 02451 USA
来源：
MULTIMEDIA SYSTEMS AND APPLICATIONS II | 1999年 / 3845卷
关键词：
Speech quality; IP network; subjective testing;
D O I：
10.1117/12.371192
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Subjective evaluations of IP telephony were collected while network performance was varied using an IP network emulator. Packet loss was set at 0%, 1%, or 8%. Mean one-way delay was set at 8 ms, 46 ms, or 156 ms (in addition to system delay of 90 ms). Delay variation (standard deviation) was set to 1 ms, 8 ms, or 17 ms. For combinations of these network settings, a standard mean opinion score (MOS) of speech quality was collected from 31 human judges. MOS is reported as a function of the network emulator settings.
引用
收藏
页码：87 / 93
页数：7
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