Title :
Design of test sequences for G.729 Annex E
Author :
Ragot, Stéphane ; Salami, Redwan ; Lefebvre, Roch
Author_Institution :
Dept. of Electr. Eng., Sherbrooke Univ., Que., Canada
Abstract :
The 11.8 kb/s extension of the G.729 codec, also known as Annex E of the G.729 Recommendation, has been ratified by the ITU-T. This paper describes how the related test sequences have been designed, using the fixed-point C simulation of the codec. The design method is based on the concept of coverage, already used in the design of test sequences for the G.729 codec. Coverage ensures that all possible parameter values are observed in the bitstream, and all portions of the algorithm are executed at least once. Experiments showed that this approach guarantees a satisfying reliability
Keywords :
C language; codecs; digital simulation; fixed point arithmetic; sequences; speech coding; telecommunication computing; telecommunication equipment testing; 11.8 kbit/s; G.729 Annex E; G.729 Recommendation; G.729 codec; ITU-T standardisation; bitstream; design method; experiments; fixed-point C simulation; innovation coverages coverage; reliability; test sequences design; Bit rate; Codecs; Delay; Design methodology; Digital signal processing; Multiple signal classification; Standardization; Technological innovation; Testing; Very large scale integration;
Conference_Titel :
Speech Coding Proceedings, 1999 IEEE Workshop on
Conference_Location :
Porvoo
Print_ISBN :
0-7803-5651-9
DOI :
10.1109/SCFT.1999.781504
