Elemente der Akustik und der Sprachtechnologie
Dafydd Gibbon
Summer Semester 1996
Version: May 7, 1996

• Contents
• 1 Course Description (German)
• 2 Term Plan (German)
• 3 Phonetic information on the Web
• 4 Overview
• 5 Signals and digital signal processing
  • Signals: Terms and basic concepts.
  • Signal idealisation in phonetic models
  • Systems and Filters
• 6 Signal processing in the time domain
  • The addition operation: spectrum synthesis
  • Multiplication: amplitude modulation
  • Clipping operations
  • The correlation transformation: spectral analysis
  • The autocorrelation relation: fundamental frequency extraction
  • Convolution: filtering
  • PSOLA: frequency and phase modulation
• 7 Spectral analysis: the Fourier transformation
• 8 Vowels: theory and practice of formant analysis
• 9 Consonants: temporal and spectral structure
• 10 Intonation: fundamental frequency and extraction
• 11 Speech recognition: architectures and methods
• 12 Speech synthesis: architectures and methods
• References
• About this document ...