Conference paper

KARAFIÁT Martin, BURGET Lukáš, HAIN Thomas and ČERNOCKÝ Jan. Discrimininative training of narrow band - wide band adaptated systems for meeting recognition. In: Proc. Interspeech 2008. Brisbane: International Speech Communication Association, 2008, p. 4. ISSN 1990-9772.
Publication language:english
Original title:Discrimininative training of narrow band - wide band adaptated systems for meeting recognition
Title (cs):Dickriminativní trénování systémů pro rozpoznávání meetingů založené na narrow band-wide band adaptaci
Pages:4
Proceedings:Proc. Interspeech 2008
Conference:Interspeech 2008 incorporating SST'08
Place:Brisbane, AU
Year:2008
Journal:Proceedings of Interspeech, No. 9, FR
ISSN:1990-9772
Publisher:International Speech Communication Association
URL:http://www.fit.vutbr.cz/research/groups/speech/publi/2008/karafiat_is2008.pdf [PDF]
Keywords
speech recognition
Annotation
The paper is on Discrimininative training of narrow band - wide band adaptated systems for meeting recognition
Abstract
The amount of training data has a crucial effect on the accuracy of HMM based meeting recognition systems. One of the largest collections of speech data is conversational telephone speech which was found to match speech in meetings well. However it is naturally recorded with limited bandwidth. In previous work we presented a scheme that allows to transform wide-band meeting data into the same space for improved model training. In this paper we focused on integration of discriminative adaptation into this scheme. This integration is not straightforward and we present the complexity of this process. The models are tested on the NIST RT'05 meeting evaluation where a relative reduction in word error rate of 5.6% against non-adapted meeting system was achieved.
BibTeX:
@INPROCEEDINGS{
   author = {Martin Karafi{\'{a}}t and Luk{\'{a}}{\v{s}} Burget and
	Thomas Hain and Jan {\v{C}}ernock{\'{y}}},
   title = {Discrimininative training of narrow band - wide band
	adaptated systems for meeting recognition},
   pages = {4},
   booktitle = {Proc. Interspeech 2008},
   journal = {Proceedings of Interspeech},
   number = {9},
   year = {2008},
   location = {Brisbane, AU},
   publisher = {International Speech Communication Association},
   ISSN = {1990-9772},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=8728}
}

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