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Faculty of Engineering
Christian-Albrechts-University, Kiel
Institute for Circuit and System Theory
Demo
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Speech Coding Demo Kiel

Institute for Circuit and System Theory, University of Kiel
Professor Dr.-Ing. Ulrich Heute

This demonstration provides an overview of coding quality and coding principles of selected speech coding standards.
(There may be difficulties when using a different browser as Explorer (Windows) or Konqueror (Unix/Linux) especially with the CELP.)
How to use this demonstration
Original Speech Decoded Speech

Female English
Male English
Female German
Male German
play original speech play original speech
  show the detail of GSM play decoded speech play decoded speech (ETSI GSM)
 
  show the detail of G726 play decoded speech play decoded speech (ITU-T G.726)
 
  show the detail of G728 play decoded speech play decoded speech (ITU-T G.728)
 
  show the detail of G729 play decoded speech play decoded speech (ITU-T G.729)
 
  show the detail of G722 play decoded speech play decoded speech (ITU-T G.722)
 
  show the detail of IMBE play decoded speech play decoded speech (IMBE (INMARSAT) )
 
  show the detail of CELP play decoded speech play decoded speech (ISO-MPEG4 CELP)
 
  show the detail of HVXC play decoded speech play decoded speech (ISO-MPEG4 HVXC)
 
  show the detail of pbMBE play decoded speech play decoded speech (LNS Kiel  pbMBE)
 
  show the detail of ITU-T G.723 play decoded speech play decoded speech (ITU-T G.723)
 
  show the detail of LPC10 play decoded speech play decoded speech (LPC10)
 
  show the detail of ITU-T G.711 play decoded speech play decoded speech (ITU-T G.711)
 
  show the detail of DoDCELP play decoded speech play decoded speech (DoDCELP)
 
  show the detail of USVSELP play decoded speech play decoded speech (USVSELP)
 
  show the detail of MELP play decoded speech play decoded speech (U.S. Standard MELP)
 
  show the detail of MNRU play decoded speech play decoded speech (Modulated Noise Reference Unit)