Nonlinear quantisation of spectral shape in sub-band coding

V. Varma, David W. Lin, J. L. Dixon

Research output: Contribution to journalArticlepeer-review


In the letter we propose nonlinear quantisation of the spectral shape in sub-band coding. This computationally simple method is shown to yield substantial improvement in speech quality. The performance improvement obtained is computed for 8-band and 16-band coding schemes operating at 16 kbit/s.

Original languageEnglish
Pages (from-to)550-552
Number of pages3
JournalElectronics Letters
Issue number8
StatePublished - 1 Jan 1989


  • Coding
  • Quantisation
  • Signal processing
  • Speech processing

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