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Title: Speech Synthesis Without a Phone Inventory
Authors: Aylett, Matthew
King, Simon
Yamagishi, Junichi
Issue Date: 2009
Journal Title: Interspeech
Abstract: In speech synthesis the unit inventory is decided using phonological and phonetic expertise. This process is resource intensive and potentially sub-optimal. In this paper we investigate how acoustic clustering, together with lexicon constraints, can be used to build a self-organised inventory. Six English speech synthesis systems were built using two frameworks, unit selection and parametric HTS for three inventory conditions: 1) a traditional phone set, 2) a system using orthographic units, and 3) a self-organised inventory. A listening test showed a strong preference for the classic system, and for the orthographic system over the self-organised system. Results also varied by letter to sound complexity and database coverage. This suggests the self-organised approach failed to generalise pronunciation as well as introducing noise above and beyond that caused by orthographic sound mismatch.
URI: http://hdl.handle.net/1842/3909
Appears in Collections:CSTR publications

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