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

fYear

2002

Firstpage

87

Lastpage

89

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Speech Coding, 2002, IEEE Workshop Proceedings.

Print_ISBN

0-7803-7549-1

Type

conf

DOI

10.1109/SCW.2002.1215733

Filename

1215733