NDLI: Effect of vector quantization on a continuous speech recognition system

Content Provider	IEEE Xplore Digital Library
Author	Landell, B. Naylor, J. Wohlford, R.
Copyright Year	1984
Description	Author affiliation: ITT Defense Communications Division, San Diego, CA (Landell, B.)
Abstract	Vector quantization techniques were applied to a continuous speech recognition system as a means of reducing both memory usage and computation time. The speech recognition system computes time-aligned distances between unknown speech segments and template frames. Vector quantization allowed the replacement of speech frames (vectors) with single index numbers which referenced an ordered set, or codebook, of representative frames. Two techniques for generating this codebook, clustering and covering, were examined. The covering technique provided a significant computational advantage over the clustering technique although both techniques generated codebooks which performed well in this task. Results are presented for a ten speaker, 100 word vocabulary experiment. Using speaker dependent codebooks, system performance levels were maintained while the number of distance calculations was reduced by a factor of 2 and the template storage required was reduced by a factor of 4.6. With an increase in error rate of about one third, these factors were 6.8 and 7.8 respectively.
Starting Page	417
Ending Page	420
File Size	128644
Page Count	4
File Format	PDF
DOI	10.1109/ICASSP.1984.1172586
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-03-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vector quantization Speech recognition Vocabulary System performance Euclidean distance Error analysis Data compression Bit rate Speech processing Degradation
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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