Title :
A 2.4/1.2 kbps SB-LPC based speech coder: the Turkish NATO STANAG candidate
Author :
Villette, S. ; Al Naimi, K.T. ; Sturt, C. ; Kondoz, A.M. ; Palaz, H.
Author_Institution :
Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK
Abstract :
NATO military communications require high quality voice communications for their military missions. Currently the performance of in-place voice coding algorithms is unacceptable in the harsh tactical acoustic conditions where NATO commanders operate, such as tracked vehicles or helicopters. A new generation of 2.4/1.2 kbps speech coding algorithms has been developed which far exceed the quality of service of the existing speech coding algorithms currently used by NATO. This has led to a decision by NATO to standardize a new algorithm to suit its need, through a competition. A candidate coder based on the split-band LPC (SB-LPC) principle has been developed to fit the requirements of the competition, and has been entered by Turkey in the NATO STANAG competition. Its details are presented in this paper.
Keywords :
code standards; linear predictive coding; military communication; military standards; speech coding; telecommunication standards; 1.2 kbit/s; 2.4 kbit/s; NATO military communications; SB-LPC based speech coder; Turkish NATO STANAG candidate; high quality voice communications; quality of service; speech coding algorithms; split-band LPC; tactical conditions; voice coding; Background noise; Filters; Frequency domain analysis; Linear predictive coding; Military communication; Noise reduction; Quantization; Speech coding; Speech enhancement; Speech processing;
Conference_Titel :
Speech Coding, 2002, IEEE Workshop Proceedings.
Print_ISBN :
0-7803-7549-1
DOI :
10.1109/SCW.2002.1215733
