法国 sevana公司的Voice Codec 测试报告
该公司提供vocoder质量测试服务,有自己的测试软件,全公司看起来就一个人,因为从技术文档联系信件看,是ceo@xxxx,应是国外技术老头吧。
该软件提供了其他官方和非官方MOS与他自己研究的ALG算法及MOS算法的测试评估报告。有Voice和HD Voice。
包括的Codec有。
MELP,MELPe,MELPe-Plus,speex,g.72x
公司网址
联系方式
Endre Domiczi
http://ee.linkedin.com/in/emddom
Sevana Oy公司CEO(10人以下)
Mentorite公司CEO
1978年硕士毕业于布达佩斯大学
原在NOKIA研究中心任职
Mobile: +372 53485178
E-mail: ceo@sevana.fi
Table 1(MOS分是CISCO提供)
automated audio codecs quality tests algorithms (ALG1, ALG2):
Codec |
MOS |
ALG 1 |
ALG 2 |
G.711 |
4,1 |
99.38 |
98.85 |
G.723; 6,3 |
3,9 |
80.49 |
72.01 |
G.723; 5,3 |
3,65 |
74.56 |
60.80 |
G.726 |
3,85 |
82.49 |
78.45 |
G.728 |
3,61 |
71.96 |
55.76 |
G.729a |
3,7 |
60.61 |
44.32 |
GSM6.10 |
3,7 |
72.46 |
55.38 |
G.729 |
3,92 |
83.4 |
90.2 |
AMR-NB |
3,847 |
74 |
78.6 |
Table 2 represents mean values of ALG1 and ALG2 scaled down to values 1 - 5 (ALG values) compared to the same CISCO MOS estimations:
Table 2
Codec |
MOS |
ALG |
G.711 |
4,1 |
4.96 |
G.723; 6,3 |
3,9 |
3.8 |
G.723; 5,3 |
3,65 |
3.38 |
G.726 |
3,85 |
4.02 |
G.728 |
3,61 |
3.19 |
G.729a |
3,7 |
2.62 |
GSM6.10 |
3,7 |
3.2 |
G.729 |
3,92 |
4.17 |
AMR-NB |
3,847 |
3.93 |
AQuA HD Voice test results
Table 1
Sevana PESQ Score |
Sevana MOS Score |
Sevana Quality Score, % |
Speech Sample |
2.89 |
3.14 |
64.02 |
|
2.95 |
3.99 |
74.83 |
|
3.02 |
4.26 |
79.07 |
|
3.03 |
4.28 |
79.57 |
|
3.03 |
4.27 |
79.39 |
|
3.08 |
4.44 |
82.58 |
AQuA Voice Testing Results
AQuA - Audio Quality Analyzer page
In the tables below you can find voice quality testing results obtained with the help of test files presented by www.signalogic.com and available for download from their web site.
Table 1
PESQ/Sevana, % |
Sevana PESQ Score |
Sevana Quality Score, % |
(ITU) PESQ Score |
English Language 1 |
Sample |
100% |
4.5 |
100 |
4.5 |
Original |
|
100% |
4.5 |
100 |
4.5 |
||
96,15% |
2,78 |
51,11 |
2,673 |
MELPe-Plus17 |
|
80,17% |
2,86 |
56,29 |
2,293 |
Table 2
PESQ/Sevana, % |
Sevana MOS Score, % |
Sevana PESQ Score |
Sevana Quality Score, % |
(ITU) PESQ Score |
English Language 2 |
Sample |
100% |
5 |
4.5 |
100 |
4.5 |
Original |
|
100% |
5 |
4.5 |
100 |
4.5 |
||
101,15% |
1,55 |
2,61 |
39,45 |
2,666 |
MELP |
|
84,02% |
3,66 |
2,91 |
70,35 |
2,445 |
||
110,42% |
1,52 |
2,59 |
38,47 |
2,86 |
MELPe |
|
89,69% |
3,0 |
2,88 |
62,36 |
2,583 |
||
103,56% |
1,61 |
2,33 |
24,88 |
2,413 |
MELPe |
|
83,56% |
2,08 |
2,78 |
50,68 |
2,323 |
||
101,14% |
3,2 |
2,89 |
64,77 |
2,923 |
MELPe-Plus |
|
93,89% |
2,96 |
2,88 |
61,86 |
2,704 |
||
101,65% |
3,54 |
2,91 |
68,79 |
2,958 |
MELPe-Plus |
|
94,93% |
2,98 |
2,88 |
62,09 |
2,734 |
||
112,23% |
3,56 |
2,91 |
69,08 |
3,266 |
eng_m6.wav |
MELPe-Plus |
107,62% |
2,54 |
2,86 |
56,89 |
3,078 |
eng_f6.wav |
|
125,26% |
2,45 |
2,85 |
55,7 |
3,57 |
eng_m7.wav |
MELPe-Plus17 |
116,19% |
2,26 |
2,81 |
53,23 |
3,265 |
eng_f7.wav |
Fig. 1. Voice quality comparison for English language
Table 3
PESQ/Sevana, % |
Sevana MOS Score, % |
Sevana PESQ Score |
Sevana Quality Score, % |
(ITU) PESQ Score |
Chinese Language |
Sample |
100% |
5 |
4.5 |
100 |
4.5 |
ch_m.wav |
Original |
100% |
5 |
4.5 |
100 |
4.5 |
ch_f.wav |
|
109,92% |
1,48 |
2,53 |
34,22 |
2,781 |
ch_m1.wav |
MELP |
88,69% |
3,29 |
2,9 |
65,75 |
2,572 |
ch_f1.wav |
|
123,69% |
1,48 |
2,49 |
31,86 |
3,08 |
ch_m2.wav |
MELPe |
97,84% |
2,32 |
2,83 |
54,82 |
2,769 |
ch_f2.wav |
|
126,76% |
1,72 |
2,16 |
20,83 |
2,738 |
ch_m3.wav |
MELPe |
86,01% |
3,01 |
2,88 |
62,5 |
2,477 |
ch_f3.wav |
|
107,96% |
3,16 |
2,89 |
64,24 |
3,12 |
ch_m4.wav |
MELPe-Plus |
95,10% |
2,98 |
2,88 |
62,17 |
2,739 |
ch_f4.wav |
|
108,10% |
3,13/TD> |
2,89 |
63,89 |
3,124 |
ch_m5.wav |
MELPe-Plus |
97,53% |
3,01 |
2,88 |
62,48 |
2,809 |
ch_f5.wav |
|
119,52% |
3,74 |
2,92 |
71,35 |
3,49 |
ch_m6.wav |
MELPe-Plus |
109,86% |
3,01 |
2,88 |
62,52 |
3,164 |
ch_f6.wav |
|
130,42% |
2,5 |
2,86 |
56,4 |
3,73 |
ch_m7.wav |
MELPe-Plus17 |
127,01% |
2,42 |
2,84 |
55,38 |
3,607 |
ch_f7.wav |
Fig. 2. Voice quality comparison for Chinese language