Title:
劣化音声信号の了解度を評価する方法およびそのための機器
Document Type and Number:
Japanese Patent JP6522508
Kind Code:
B2
Abstract:
The present invention relates to a method of evaluating intelligibility of a degraded speech signal received from an audio transmission system conveying a reference speech signal. The method comprises sampling said signals into reference and degraded signal frames, and forming frame pairs by associating reference and degraded signal frames with each other. For each frame pair a difference function representing disturbance is provided, which is then compensated for specific disturbance types for providing a disturbance density function. Based on the density function of a plurality of frame pairs, an overall quality parameter is determined. The method provides for compensating the overall quality parameter for the effect that the assessment of intelligibility of CVC words is dominated by the intelligibility of consonants.
Inventors:
Berenz, Yong Herald
Application Number:
JP2015542991A
Publication Date:
May 29, 2019
Filing Date:
November 15, 2013
Export Citation:
Assignee:
Nederland's Organisati Fall Tougepasto-Naturweten Schapeleek on Dellsook Teenau
International Classes:
G10L25/69; G10L19/00
Domestic Patent References:
| JP200815443A | ||||
| JP2011501206A | ||||
| JP2006522349A |
Other References:
北脇信彦,"ディジタル通信網における音声品質評価法の研究と国際標準化",電子情報通信学会技術研究報告,2010年 7月 1日,Vol.110,No.118,pp.59-64
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office