Persistent Link:
http://hdl.handle.net/10150/609331
Title:
A Fixed Sampling Rate Vocoplexer
Author:
Lerner, Theodore
Affiliation:
Textron Bell Aerospace
Issue Date:
1975-10
Rights:
Copyright © International Foundation for Telemetering
Collection Information:
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.
Publisher:
International Foundation for Telemetering
Journal:
International Telemetering Conference Proceedings
Abstract:
The vocoplexer is a system which permits a reduction in the data rate required to transmit voice signals when many such signals are multiplexed onto a common digital line. This is accomplished through the use of a coding technique which is based on the statistical properties of voice signals. The reduction in data rate that can be realized by the vocoplexer is a function of the speech quality required. Typically, for a speech quality equivalent to PCM at 8,000 samples per second and five bits per sample, a reduction in data rate to about 1/3 can be accomplished. The descriptions in this paper are based on this quality requirement. However, for a somewhat reduced quality requirement, even greater savings can be accomplished. For example, if quality equivalent to PCM at 8,000 samples per second at four bits per sample is adequate, the vocoplexer will require approximately 9,600 bits per second. For quality equivalent to delta modulation at 18,000 bits per second the vocoplexer requires approximately 6,400 bits per second per voice channel.
Sponsors:
International Foundation for Telemetering
ISSN:
0884-5123; 0074-9079
Additional Links:
http://www.telemetry.org/

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleA Fixed Sampling Rate Vocoplexeren_US
dc.contributor.authorLerner, Theodoreen
dc.contributor.departmentTextron Bell Aerospaceen
dc.date.issued1975-10en
dc.rightsCopyright © International Foundation for Telemeteringen
dc.description.collectioninformationProceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.en
dc.publisherInternational Foundation for Telemeteringen
dc.description.abstractThe vocoplexer is a system which permits a reduction in the data rate required to transmit voice signals when many such signals are multiplexed onto a common digital line. This is accomplished through the use of a coding technique which is based on the statistical properties of voice signals. The reduction in data rate that can be realized by the vocoplexer is a function of the speech quality required. Typically, for a speech quality equivalent to PCM at 8,000 samples per second and five bits per sample, a reduction in data rate to about 1/3 can be accomplished. The descriptions in this paper are based on this quality requirement. However, for a somewhat reduced quality requirement, even greater savings can be accomplished. For example, if quality equivalent to PCM at 8,000 samples per second at four bits per sample is adequate, the vocoplexer will require approximately 9,600 bits per second. For quality equivalent to delta modulation at 18,000 bits per second the vocoplexer requires approximately 6,400 bits per second per voice channel.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123en
dc.identifier.issn0074-9079en
dc.identifier.urihttp://hdl.handle.net/10150/609331en
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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