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Speech Coding

  • 2002 IEEE Workshop on Speech Coding

  • Speech Coding Research Group
  • Fraunhofer-Institut für Digitale Medientechnologie (IDMT)

  • Karlheinz Brandenburg
  • Andreas Spanias

  • DSP group Truespeech
  • Digital Voice Systems
  • Bell Labs ClearPresence
  • GSM 06.10 lossy speech compression

Coding algorithms seek to minimize the bit rate in the digital representation of a signal without an objectionable loss of signal quality in the process. High quality is attained at low bit rates by exploiting signal redundancy as well as the knowledge that certain types of coding distortion are imperceptible because they are masked by the signal. Models of signal redundancy and distortion masking are becoming increasingly more sophisticated, leading to continuing improvements in the quality of low bit rate signals.


Speech Coder