Abstract

Most modern bandwidth extension techniques predict the high- frequency band based on features extracted from the lower band. While this works for some frames, problems arise when the correlation between the low and the high band is insufficient. In these situations, additional high-band information must be sent to the decoder. In this paper, we propose a scalable speech coding method based on the principles of bandwidth extension. The rate selection is based on explicit psyehoacoustic criteria, while the bandwidth extension is performed using a constrained MMSE estimation technique. Objective and subjective evaluations indicate that the proposed system performs at a lower average bit rate when compared to other similar algorithms while improving speech quality.

Original languageEnglish (US)
Title of host publication2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
PagesIV601-IV604
DOIs
StatePublished - Aug 6 2007
Event2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 - Honolulu, HI, United States
Duration: Apr 15 2007Apr 20 2007

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
ISSN (Print)1520-6149

Other

Other2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
CountryUnited States
CityHonolulu, HI
Period4/15/074/20/07

Keywords

  • Bandwidth extension
  • Multirate coding
  • Psychoacoustics
  • Scalable speech coding
  • Speech enhancement

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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  • Cite this

    Berisha, V., & Spanias, A. (2007). A scalable bandwidth extension algorithm. In 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 (pp. IV601-IV604). [4218172] (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 4). https://doi.org/10.1109/ICASSP.2007.366984