NDLI: Some experiments with a simple word recognition system

Content Provider	IEEE Xplore Digital Library
Author	Shearme, J. Leach, P.
Copyright Year	1966
Abstract	This paper describes some pilot experiments in a project to recognize selected words spoken by any talker. For this initial work, a population of 10 talkers is used and the 32 test words are spoken in isolation. In the experiments, a word is represented by a set of regularly spaced time samples of the normalized spectrum envelope, and recognition is achieved by comparison of such a set of samples with a library of stored sets. Limitations on computer storage necessitate a compact method of coding a spectrum sample. Two methods have been compared, one of which classifies spectra into a very small number of types, while the other uses a 24-bit representation. The most serious problem encountered in spectrum matching is the well-known lack of synchronism between corresponding spectral events when phonemically identical words are spoken by different talkers. This paper describes an attack on this problem, which relies on using a number of sets of spectrum samples to represent each word in the stored library of words to be recognized. There are a number of ways of using the scores obtained from matching an unknown word with a library of known words. Some of these are described and some results are given both for the case where the unknown word is known to be in the stored library, and for the case where there is no such limitation.
Starting Page	256
Ending Page	261
Page Count	6
File Size	536042
File Format	PDF
ISSN	00189278
Volume Number	16
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1968-06-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech Software libraries Shape Prototypes Testing Sampling methods Filtering theory Performance analysis Computational modeling Analytical models
Content Type	Text
Resource Type	Article
Subject	Signal Processing Engineering Electrical and Electronic Engineering

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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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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