KPE80 - A Klatt Synthesiser and Parameter Editor

• Platform: Unix
• Description: The KPE80 program provides a graphical interface for the implementation of the Klatt 1980 formant synthesiser written by Jon Iles and Nick Ing-Simmons. It was inspired by IGE, a piece of code written by Rob Fletcher ( http://www.york.ac.uk/~rpf1/IGE.html).
• Technical Desc.: It is comprised of an X-Window interface and version 3.03 of the synthesiser code. The interface allows users to display and edit Klatt parameters using a graphical display which includes the time-amplitude waveform of both the original speech and its synthetic copy, and some signal analysis facilities. Most of the work in choosing the parameter values to produce the synthetic copy has to be done by the user. KPE will estimate the fundamental frequency contour from an original token; this estimate will need to be amended where errors occur. It is possible to specify the formant trajectories with some precision by overlaying the appropriate formant frequency parameter tracks on the spectrogram of the target waveform. A number of facilities exist to help in the refinement of parameter values: original and synthetic waveforms can be compared aurally, spectrally, and spectrographically using built-in speech analysis facilities.
• File formats: KPE will read RIFF (.wav) files and SFS files. (SFS is a suite of speech-signal processing programs available free from Phonetics and Linguistics, UCL.)
• Availability:

  KPE for SunOs 4.1.3 (statically compiled libraries)

  ftp://pitch.phon.ucl.ac.uk/pub/kpe/kpe80.sun413.tar.Z

  KPE for Linux (statically compiled libraries)

  ftp://pitch.phon.ucl.ac.uk/pub/kpe/kpe80.linux.tar.Z

  The source code (needs gcc and SUIT to compile)

  ftp://pitch.phon.ucl.ac.uk/pub/kpe/kpe80.src.tar.Z

  A postscript overview of KPE

  ftp://pitch.phon.ucl.ac.uk/pub/kpe/OVERVIEW.ps

  The SFS distribution

  ftp://pitch.phon.ucl.ac.uk/pub/sfs/

• See also: Public domain Klatt-style speech synthesis code.
• Contact: Andrew Simpson
  Department of Phonetics and Linguistics, University College London
  Wolfson House, 4 Stephenson Way, London NW1 2HE
  Email: a.simpson@ucl.ac.uk
  WWW: http://www.phon.ucl.ac.uk/home/andrew/home.html

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