A Hybrid Speech Codec Employing Parametric and Perceptual Coding Techniques

Czyzewski A, Kulesza M, Szwoch G. A Hybrid Speech Codec Employing Parametric and Perceptual Coding Techniques. In: AES Convention 121. Audio Engineering Society; 2006. Paper 6956. Available from: https://aes.org/publications/elibrary-page/?id=13790

@inproceedings{Czyzewski2006_13790,
  author = {Czyzewski, Andrzej and Kulesza, Maciej and Szwoch, Grzegorz},
  title = {{A Hybrid Speech Codec Employing Parametric and Perceptual Coding Techniques}},
  booktitle = {AES Convention 121},
  note = {Paper 6956},
  year = {2006},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13790}
}

TY  - CPAPER
TI  - A Hybrid Speech Codec Employing Parametric and Perceptual Coding Techniques
AU  - Czyzewski, Andrzej
AU  - Kulesza, Maciej
AU  - Szwoch, Grzegorz
T2  - AES Convention 121
M1  - Paper 6956
PY  - 2006
DA  - 2006/10/06
UR  - https://aes.org/publications/elibrary-page/?id=13790
PB  - Audio Engineering Society
LA  - en
AB  - A hybrid speech codec for VoIP telephony applications is presented employing combined parametric and perceptual coding techniques. The signal is divided into voiced signal components that are encoded using the perceptual algorithm, unvoiced components that are encoded parametrically and transients that are not encoded with a lossy method. The codec architecture where voiced part of the CELP residual signal is perceptually encoded and transmitted to the decoder along with the CELP main bit stream is also examined. Various methods for transient detection in the speech signal are discussed. The results of experiments revealing the improved subjective quality of the transmitted speech are also presented.
ER  -