Automatic speech recognition and speech variability: A review

被引：312

作者：

Benzeghiba, M. ^{[1
]}

De Mori, R. ^{[1
]}

Deroo, O. ^{[1
]}

Dupont, S. ^{[1
]}

Erbes, T. ^{[1
]}

Jouvet, D. ^{[1
]}

Fissore, L. ^{[1
]}

Laface, P. ^{[1
]}

Mertins, A. ^{[1
]}

Ris, C. ^{[1
]}

Rose, R. ^{[1
]}

Tyagi, V. ^{[1
]}

Wellekens, C. ^{[1
]}

机构：

[1] Multitel, Parc Initialis, B-7000 Mons, Belgium

来源：

SPEECH COMMUNICATION | 2007年 / 49卷 / 10-11期

关键词：

speech recognition; speech analysis; speech modeling; speech intrinsic variations;

D O I：

10.1016/j.specom.2007.02.006

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Major progress is being recorded regularly on both the technology and exploitation of automatic speech recognition (ASR) and spoken language systems. However, there are still technological barriers to flexible solutions and user satisfaction under some circumstances. This is related to several factors, such as the sensitivity to the environment (background noise), or the weak representation of grammatical and semantic knowledge. Current research is also emphasizing deficiencies in dealing with variation naturally present in speech. For instance, the lack of robustness to foreign accents precludes the use by specific populations. Also, some applications, like directory assistance, particularly stress the core recognition technology due to the very high active vocabulary (application perplexity). There are actually many factors affecting the speech realization: regional, sociolinguistic, or related to the environment or the speaker herself. These create a wide range of variations that may not be modeled correctly (speaker, gender, speaking rate, vocal effort, regional accent, speaking style, non-stationarity, etc.), especially when resources for system training are scarce. This paper outlines current advances related to these topics. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：763 / 786

页数：24

共 324 条

[81] Effects of speaking rate and word frequency on pronunciations in convertional speech [J].