Some factors influencing the intelligibility of the enhanced whisper in the joint time-frequency domain are evaluated. Specifically, both the spectrum density and different regions of the enhanced spectrum are analyze...Some factors influencing the intelligibility of the enhanced whisper in the joint time-frequency domain are evaluated. Specifically, both the spectrum density and different regions of the enhanced spectrum are analyzed. Experimental results show that for a spectrum of some density, the joint time-frequency gain-modification based speech enhancement algorithm achieves significant improvement in intelligibility. Additionally, the spectrum region where the estimated spectrum is smaller than the clean spectrum, is the most important region contributing to intelligibility improvement for the enhanced whisper. The spectrum region where the estimated spectrum is larger than twice the size of the clean spectrum is detrimental to speech intelligibility perception within the whisper context.展开更多
Economic Value Added, referred to as EVA, also known as economic value added, in the early 1990s, in order to adapt to dramatic changes in the business environment, the U.S. consulting f＇trm Stem Stewart proposed and...Economic Value Added, referred to as EVA, also known as economic value added, in the early 1990s, in order to adapt to dramatic changes in the business environment, the U.S. consulting f＇trm Stem Stewart proposed and implemented a concept of economic value added based financial management system, decision-making mechanism and incentive compensation system, new financial performance evaluation. Proposed EVA aims to overcome the deficiencies of traditional indicators accurately reflect the company＇s value creation for shareholders. In this paper, the basic theory of EVA to sort out, 4M＇s evaluation and EVA systems were reviewed research.展开更多
基金The National Natural Science Foundation of China(No.61301295,61273266,61301219,61201326,61003131)the Natural Science Foundation of Anhui Province(No.1308085QF100,1408085MF113)+2 种基金the Natural Science Foundation of Jiangsu Province(No.BK20130241)the Natural Science Foundation of Higher Education Institutions of Jiangsu Province(No.12KJB510021)the Doctoral Fund of Anhui University
文摘Some factors influencing the intelligibility of the enhanced whisper in the joint time-frequency domain are evaluated. Specifically, both the spectrum density and different regions of the enhanced spectrum are analyzed. Experimental results show that for a spectrum of some density, the joint time-frequency gain-modification based speech enhancement algorithm achieves significant improvement in intelligibility. Additionally, the spectrum region where the estimated spectrum is smaller than the clean spectrum, is the most important region contributing to intelligibility improvement for the enhanced whisper. The spectrum region where the estimated spectrum is larger than twice the size of the clean spectrum is detrimental to speech intelligibility perception within the whisper context.
文摘Economic Value Added, referred to as EVA, also known as economic value added, in the early 1990s, in order to adapt to dramatic changes in the business environment, the U.S. consulting f＇trm Stem Stewart proposed and implemented a concept of economic value added based financial management system, decision-making mechanism and incentive compensation system, new financial performance evaluation. Proposed EVA aims to overcome the deficiencies of traditional indicators accurately reflect the company＇s value creation for shareholders. In this paper, the basic theory of EVA to sort out, 4M＇s evaluation and EVA systems were reviewed research.
