Rss & SiteMap

声学楼论坛 http://www.nju520.com/bbs/

声学楼论坛是使用量最多、覆盖面最广的免费技术论坛,也是国内知名的声学技术讨论站点,希望我们辛苦的努力可以为您带来很多方便
共3 条记录, 每页显示 20 条, 页签: [1]
[浏览完整版]

标题:关于测试语音传输指数的数据解释谁能帮下帮

1楼
my13361288888 发表于:2013-11-24 18:49:12

刚刚测得了一组数据,但是有些地方不会看,STI指数在是0和1之间那么最后的结果是哪一个?RaSTI=0.523 rated Fair是结果吗? 还有F1到F14之间的数据代表什么含义?麻烦那位高手帮忙给做下一注解啊

STI index(STI指标)
---------------------------------------------------------------------
Oct.Band 125 250 500 1k 2k 4k 8k
f1=0.63   0.309 0.253 0.386 0.797 1.000 0.965 1.000
f2=0.80   0.147 0.058 0.318 0.768 0.977 0.923 1.000
f3=1.00   0.000 0.000 0.304 0.746 0.925 0.880 0.969
f4=1.25   0.000 0.193 0.351 0.729 0.870 0.835 0.913
f5=1.60   0.075 0.294 0.405 0.705 0.809 0.781 0.850
f6=2.00   0.160 0.250 0.392 0.671 0.756 0.731 0.794
f7=2.50   0.149 0.197 0.341 0.632 0.705 0.679 0.738
f8=3.15   0.108 0.214 0.294 0.590 0.654 0.626 0.682
f9=4.00   0.160 0.181 0.300 0.550 0.603 0.575 0.625
f10=5.00  0.033 0.187 0.258 0.517 0.558 0.531 0.574
f11=6.30  0.102 0.106 0.241 0.478 0.512 0.489 0.523
f12=8.00  0.000 0.228 0.256 0.425 0.465 0.441 0.473
f13=10.00 0.218 0.163 0.302 0.383 0.419 0.398 0.427
f14=12.50 0.076 0.218 0.245 0.350 0.382 0.362 0.383
---------------------------------------------------------------------
MTI        0.110 0.182 0.314 0.596 0.688 0.658 0.711

STI=0.488 rated Fair
ALcons=12.1%
---------------------------------------------------------------------
STIr index(sti
指数)
---------------------------------------------------------------------
Oct.Band 125 250 500 1k 2k 4k 8k
f1=0.63   0.309 0.000 0.352 0.767 1.000 0.938 0.778
f2=0.80   0.147 0.000 0.288 0.742 0.965 0.902 0.770
f3=1.00   0.000 0.000 0.274 0.723 0.916 0.864 0.758
f4=1.25   0.000 0.000 0.319 0.708 0.864 0.823 0.741
f5=1.60   0.075 0.000 0.369 0.686 0.805 0.772 0.716
f6=2.00   0.160 0.000 0.357 0.656 0.753 0.724 0.688
f7=2.50   0.149 0.000 0.309 0.619 0.702 0.674 0.656
f8=3.15   0.108 0.000 0.264 0.580 0.652 0.622 0.617
f9=4.00   0.160 0.000 0.270 0.542 0.602 0.572 0.574
f10=5.00  0.033 0.000 0.229 0.509 0.557 0.529 0.532
f11=6.30  0.102 0.000 0.213 0.471 0.511 0.486 0.488
f12=8.00  0.000 0.000 0.228 0.419 0.465 0.439 0.443
f13=10.00 0.218 0.000 0.272 0.378 0.418 0.397 0.401
f14=12.50 0.076 0.000 0.216 0.345 0.382 0.360 0.359
Lk [dB]    11.1 15.2 19.3 22.3 32.6 43.8 42.8
---------------------------------------------------------------------
MTI        0.110 0.000 0.283 0.582 0.685 0.650 0.609

STIr(male)=0.548 rated Fair
ALcons=8.7%
STIr(female)=0.564 rated Fair
ALcons=8.0%
---------------------------------------------------------------------
RaSTI index
---------------------------------------------------------------------
Oct.Band    500 2k
0.7          1.000
1.0         0.304
1.4          0.841
2.0         0.392
2.8          0.679
4.0         0.300
5.6          0.535
8.0         0.256
11.2         0.399
---------------------------------------------------------------------

RaSTI=0.523 rated Fair(语言快速传递指数展示)
ALcons=10.0%(
辅音清晰度损失率)

2楼
TestGuru 发表于:2020-5-7 1:41:37
STI(男),STI(女)的数值上面已经显示很清楚了。F1~F14是正弦波强度调制的调制频率。

3楼
TestGuru 发表于:2020-5-7 1:45:44
图片点击可在新窗口打开查看





图片点击可在新窗口打开查看


图片点击可在新窗口打开查看
 
[此贴子已经被作者于2020-5-7 1:48:53编辑过]
共3 条记录, 每页显示 20 条, 页签: [1]

Copyright © 2005-2023 nju520.com
Powered By Dvbbs Version 8.3.0
Processed in .03125 s, 2 queries.