NDLI: Performance comparison of several techniques to detect keywords in audio streams and audio scene

Content Provider	IEEE Xplore Digital Library
Author	Bohac, M.
Copyright Year	2012
Description	Author affiliation: SpeechLab, Faculty of Mechatronics, Technical University of Liberec, Studentska 2, 46117 Liberec, Czech Republic (Bohac, M.)
Abstract	This paper is focused on the task of detecting words of interest in an audio scene (a room, a lab or a workshop) or in a continually recorded stream of speech, music and other sounds. The solution of this task is important in many applications, e.g. for command control in houses for handicapped persons, for automating some manufacturing and logistical operations, or for information retrieval from large audio archives. We investigate the use of three keyword spotting techniques and compare them with a classic large vocabulary sp eech reco gnit ion sy st em. To evaluat e t heir performance, we specified and studied two model applications: 1) search in large audio broadcast archive; 2) voice control of an interactive system. The investigated techniques were evaluated from several points of view, namely their speed (real-time factor), accuracy (equal error rate, figure of merit, receiver op erating characteristics), the demands for training data and the impact of different types of noise.
Starting Page	215
Ending Page	218
File Size	131393
Page Count	4
File Format	PDF
ISBN	9781467312431
ISSN	13342630
e-ISBN	9789537044145
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-12
Publisher Place	Croatia
Access Restriction	Subscribed
Rights Holder	ELMAR (Electronics in Marines)
Subject Keyword	Vocabulary Speech Recognition Keyword Spotting Comparison Hidden Markov models Speech recognition Speech System Control Filler Model Testing Signal to noise ratio Speech Processing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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