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Enjoy meeting the MADDE vowel synthesiser! Experience changes of vowel and  voice quality,  pitch, vibrato characteristics etc as you change the parameters!

Open Pdf-file with the instructions»

Download MADDE from www.tolvan.com»

© 2026 World Voice Day

  • Welcome to World Voice Day
    • Event registration
    • Past Events
  • National Coordinators
    • Photo gallery
    • Contact list
  • WVD Edu
    • Pictures
    • Movies
    • Talks and articles
  • Voice Caring
    • Warm up exercises
    • Hoarseness
  • Links
    • Releases
  • Graphics
  • Mission Statement
  • Contact