By Topic

Use of simple predictive techniques to increase the capacity of p.c.m. systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Flood, J.E. ; University of Aston, Department of Electrical Engineering, Birmingham, UK ; Whitehouse, K.G.

A system is described that reduces the required transmission-path capacity of multiplex pulse-code modulation systems. Simple predictive techniques are used to remove redundant samples from the digitised speech signals. The impairments produced by such a system are identified and methods of minimising them are investigated. It is concluded that the number of baseband channels can be doubled, compared with conventional p.c.m., for the same bandwidth. A model was constructed that simulated the operation of the proposed system. Signal-to-noise measurements and subjective tests on the model confirmed the findings of the theoretical analysis.

Published in:

Electrical Engineers, Proceedings of the Institution of  (Volume:123 ,  Issue: 11 )