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Low bit rate speech transmission: classified vector excitation coding

Buggy, Brian (1987) Low bit rate speech transmission: classified vector excitation coding. Master of Engineering thesis, Dublin City University.

Vector excitation coding (VXC) is a speech digitisation technique growing in popularity. Problems associated with VXC systems are high computational complexity and poor reconstruction of plosives. The Pairwise Nearest Neighbour (PNN) clustering algorithm is proposed as an efficient method of codebook design. It is demonstrated to preserve plosives better than the Linde-Buzo-Gary (LBG) algorithm [34] and maintain similar quality to LBG for other speech Classification of the residual is then studied. This reduces codebook search complexity and enables a shortcut in computation of the PNN algorithm to be exploited.
Item Type:Thesis (Master of Engineering)
Date of Award:1987
Supervisor(s):Marlow, Sean
Uncontrolled Keywords:Speech processing systems; Speech digitisation systems
Subjects:Engineering > Electronic engineering
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 License. View License
ID Code:18374
Deposited On:21 Jun 2013 13:23 by Celine Campbell . Last Modified 21 Jun 2013 13:23

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