article · IEEE Transactions on Multimedia · 2003

Improving the transcoding capability of speech coders

Cited by 19Abstract and details only

Abstract

With the trend of merging various communication networks, a need arises to provide transcoding between different speech coding formats. Presently this means a cross tandem between the two coders in each case. This results in both quality loss and extra delay. A possible alternative is using a bitstream mapping approach that directly converts parameter values. For several standard coders having a similar coding structure, it should be possible to generate comparable or better quality without adding much delay or complexity. This paper proposes a bitstream mapping method between ITU-T Recommendation G.729 and TIA IS-641. Informal listening tests and the perceptual subjective quality measure (PSQM) scores show that the proposed method has better quality than the cross tandem method, while it has at least 5 ms less delay and six times less computation.

Cite this paper

APA 7

Kang, H.-G., Kim, H. K., & Cox, R. (2003). Improving the transcoding capability of speech coders. IEEE Transactions on Multimedia, 5(1), 24–33. https://doi.org/10.1109/tmm.2003.808823

MLA 9

Kang, Hong-Goo, et al. “Improving the transcoding capability of speech coders.” IEEE Transactions on Multimedia, vol. 5, no. 1, 2003, pp. 24–33, https://doi.org/10.1109/tmm.2003.808823.

Chicago

Kang, Hong-Goo, Hong Kook Kim, and R.V. Cox. 2003. “Improving the transcoding capability of speech coders.” IEEE Transactions on Multimedia 5 (1): 24–33. https://doi.org/10.1109/tmm.2003.808823.

Harvard

Kang, H.-G., Kim, H.K. and Cox, R. (2003) ‘Improving the transcoding capability of speech coders’, IEEE Transactions on Multimedia, 5(1), pp. 24–33. Available at: https://doi.org/10.1109/tmm.2003.808823.

BibTeX

@article{kang2003improving,
  title = {{Improving the transcoding capability of speech coders}},
  author = {Kang, Hong-Goo and Kim, Hong Kook and Cox, R.V.},
  journal = {IEEE Transactions on Multimedia},
  volume = {5},
  number = {1},
  pages = {24--33},
  year = {2003},
  doi = {10.1109/tmm.2003.808823}
}

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