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<Paper uid="C86-1063">
  <Title>MORPHOLOGICAL ANALYSIS FOR A GERMAN TEXT-TO-SPEECH SYSTEM</Title>
  <Section position="3" start_page="0" end_page="0" type="intro">
    <SectionTitle>
1. INTRODUCTION
</SectionTitle>
    <Paragraph position="0"> Many applications of computer speech require unrestricted vocabulary. In particular~ voice output units of this kind permit the linkage of the common telephone network to a central computer, thus enabling access for a large public. &amp;quot;Karlchen&amp;quot;, the Frankfurt talking railway timetable, and other automatic information services are based on this principle.</Paragraph>
    <Paragraph position="1"> If a written text serves as input to a speech synthesis system with unrestricted vocabulary (text-tospeech synthesis)p the derivation of a correct and natural-sounding pronunciation and intonation must be provided for. The software module GRAPHON (GRAPHemo-PHONome-conversion) has boon developed to convert any given German text into its phonetic transcription (I.P.A.)~ enriched by some prosodic markers.</Paragraph>
    <Paragraph position="2"> The text-to-speech system is being implemented on an HP 9816 workstation system with a 68000 CPU and 768 kbyte of RAM. At present a SSI 263 phone synthesizer serves as acoustical output unit; a simplified articulatory model used to control a refined digital vocal tract synthesizer is under development. The software is written in PASCAL and operation of the whole system is expected to be almost real-time. (For further implementational details cf. \[1\].) While text-to-speech systems for the English language are fairly advanced, there is much room for development for German ~peaking systems. It is possible only to a limited extent to profit from work in the field of English. Obviouslyj German pronunciation rules differ from those of other languages; however9 the mere replacement of a given grapheme-to-phoneme conversion rule by another is inadequate to meet the demands of the very different principles on which two writing-systems are founded. Tills also applies to the structural levels of morphology and syntax.</Paragraph>
  </Section>
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