AMR과 EVRC 음성 부호화기간의 비탠덤 방식을 이용한 상호 부호화Tandemless Transcoding for AMR and EVRC Speech Coders

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Novel tandemless transcoding method for AMR and EVRC speech coders is proposed in this paper. In contrast to conventional tandem method, the parameters which is used commonly in speech coder where CELP algorithm is adapted are directly transcoded. The proposed algorithm is composed of LSP transcoding, pitch delay transcoding, gains transcoding and fixed codebook vector transcoding Evaluation results show that the novel algorithm achieves better speech quality than tandem method and reduce computational complexity and delay.
Publisher
한국음향학회
Issue Date
2002-08
Language
Korean
Citation

한국음향학회지, v.21, no.6, pp.531 - 542

ISSN
1225-4428
URI
http://hdl.handle.net/10203/79098
Appears in Collection
EE-Journal Papers(저널논문)
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