Flexible spectrum coding in the 3GPP EVS codec

Adriana Vasilache; Anssi Rämö; Hosang Sung; Sangwon Kang; Jonghyeon Kim; Eunmi Oh

ICASSP 2015accepted0 citations

Flexible spectrum coding in the 3GPP EVS codec

Adriana Vasilache, Anssi Rämö, Hosang Sung, Sangwon Kang, Jonghyeon Kim, Eunmi Oh

Abstract

This paper proposes a flexible encoding technique based on multi-stage multiple scale lattice vector quantization and block-constrained trellis coded vector quantization. It is used for the spectrum encoding, more precisely encoding of the LSF parameters, and incorporated in the recently standardized 3GPP EVS codec. The proposed method can handle multiple bit allocations and signal types with low complexity and low memory requirements.

BibTeX

@inproceedings{icassp2015_flexiblespectrum,
  title = {Flexible spectrum coding in the 3GPP EVS codec},
  author = {Adriana Vasilache and Anssi Rämö and Hosang Sung and Sangwon Kang and Jonghyeon Kim and Eunmi Oh},
  booktitle = {ICASSP 2015},
  year = {2015}
}