IPOX versus YorkTalk

Related developments:

• French version of YorkTalk (Eric Keller, Switzerland)
• SynPhonics Concept-To-Speech system (Günther et al 1994)

• separate rule compiler (clear separation of linguistic rules and procedural algorithms)
• metrical tree as central data structure (YorkTalk does not take full advantage of metrical structure)
• rule formalism allows rule developer to state generalizations across phrase structure rules separately by means of rule templates

• development of IPOX has not progressed as far as YorkTalk
• rules for synthesis of British English mono-syllables from an earlier version of YorkTalk ("Oxford version")
• rules for polysyllabic words and utterances rather preliminary

• this is a sentence, spoken by a non-segmental synthesis system (YorkTalk)
• this is a sentence, spoken by an all-prosodic synthesis system (IPOX)