CONTENTS

 1     Introduction
 2     Scope, purpose and definition
        2.1     Scope and purpose
        2.2     Definition
 3     Terminology
        3.1     Electrical artificial voice
        3.2     Artificial mouth excitation signal
        3.3     Acoustic artificial voice
 4     Characteristics
        4.1     Long-term average spectrum
        4.2     Short-term spectrum
        4.3     Instantaneous amplitude distribution
        4.4     Segmental power level distribution
        4.5     Spectrum of the modulation envelope
        4.6     Time convergence
 5     Generation method
        5.1     Excitation source signal
        5.2     Glottal excitation
        5.3     Unvoiced sounds
        5.4     Power envelope
        5.5     Spectrum shaping filter
 6     Bibliography
Annex A – Short-term spectrum characteristics of the artificial voice