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Citation

Šmídl, L. and Psutka, J. and Obracaník, O. and Podaný, P. and Zahradil, J. : Fast keyword spotting from acoustic baseforms . Proceedings of the 11th international conference "Speech and computer" SPECOM'2006, p. 79-99, Anatolya Publisher, St. Petersburg, 2006.

Abstract

This paper describes a filler model, used in our keyword spotting system, which is implemented as a phoneme recognizer. The filler model produces a sequence of phones corresponding to the input utterance and can be used as a phoneme recognizer. The dependency of accuracy and correctness on the filler model back loop penalty as well as the influence of the filler model language model are depicted. The output of the phoneme recognizer can be used for keyword spotting. Two modifications of basic DTW algorithm are presented. The advantage of this keyword spotting approach is the possibility of two pass detection. The first pass (slow) is done only once. The second pass (fast) is done on the request of searching the keyword and uses only the sequence of the phones generated by the first pass. All the tests are performed on the telephone speech corpus.

Detail of publication

Title: Fast keyword spotting from acoustic baseforms
Author: Šmídl, L. ; Psutka, J. ; Obracaník, O. ; Podaný, P. ; Zahradil, J.
Language: English
Date of publication: 1 Jan 2006
Year: 2006
Type of publication: Papers in proceedings of reviewed conferences
Title of journal or book: Proceedings of the 11th international conference "Speech and computer" SPECOM'2006
Page: 79 - 99
ISBN: 5-7452-0074-X
Publisher: Anatolya Publisher
Address: St. Petersburg
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Keywords

keyword spotting, filler model, acoustic baseform

BibTeX

@INPROCEEDINGS{SmidlL_2006_Fastkeywordspotting,
 author = {\v{S}m\'{i}dl, L. and Psutka, J. and Obracan\'{i}k, O. and Podan\'{y}, P. and Zahradil, J.},
 title = {Fast keyword spotting from acoustic baseforms},
 year = {2006},
 publisher = {Anatolya Publisher},
 journal = {Proceedings of the 11th international conference "Speech and computer" SPECOM'2006},
 address = {St. Petersburg},
 pages = {79-99},
 ISBN = {5-7452-0074-X},
 url = {http://www.kky.zcu.cz/en/publications/SmidlL_2006_Fastkeywordspotting},
}