Title :
Method of Converting Speech Codec Formats between G.723.1 and G.729A
Author :
Shevchuk, Ruslan
Author_Institution :
Comput. Sci. Dept., Ternopil Nat. Economic Univ., Ternopil
Abstract :
In this paper, an efficient method of converting speech codec formats between G.723.1 and G.729A is proposed. The method is composed of four steps: LSP conversion, pitch conversion, adaptive codebook search and fixed codebook search. Subjective results show that the proposed method has shorter delay than classical tandem method.
Keywords :
speech codecs; CS-ACELP; G.723.1 format; G.729A formats; LSP conversion; adaptive codebook search; conjugate structure algebraic code excited linear prediction; delay estimation; fixed codebook search; linear spectral pair conversion; pitch conversion; speech codec formats; tandem method; Delay; Maximum likelihood decoding; Quantization; Signal synthesis; Speech analysis; Speech codecs; Speech coding; Speech synthesis; Transcoding; Vectors; CS-ACELP; G.723.1; G.729A; MP-MLQ; converting; tandem;
Conference_Titel :
CAD Systems in Microelectronics, 2007. CADSM '07. 9th International Conference - The Experience of Designing and Applications of
Conference_Location :
Lviv-Polyana
Print_ISBN :
966-533-587-0
DOI :
10.1109/CADSM.2007.4297625
