发明名称 |
Verfahren und Vorrichtung zur Schätzung der Gesamtgüte eines Sprachsignals |
摘要 |
The delay time and listening quality of a system under test are measured from a signal received therefrom, then the measured delay time and listening quality are transformed to a delay-related degradation and a listening quality degradation on the same quality measure, then the quantity of interaction between the delay-related degradation and the listening quality degradation is calculated, and the delay-related degradation, the listening quality degradation and the quantity of interaction are added together to obtain an overall degradation. The overall degradation is transformed to a subj ective evaluation value to estimate the overall speech quality. <IMAGE> |
申请公布号 |
DE60311754(T2) |
申请公布日期 |
2007.11.22 |
申请号 |
DE2003611754T |
申请日期 |
2003.12.23 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORP. |
发明人 |
TAKAHASHI, AKIRA;OKAMOTO, JUN;KAWAGUTI, GINGA |
分类号 |
G10L19/00 |
主分类号 |
G10L19/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|