Development of a Rule-Based Speech Synthesizer Module for Embedded Use (Special Section on Speech Synthesis: Current Technologies and Equipment)

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概要

• 論文の詳細を見る

• A module for rule-based Japanese speech synthesis has been developed. The synthesizer was constructed using the Multiple-Cascade Terminal Analog (MCTA) structure, and this structure has been improved in three repects: the voicingsource model has an increased number of variable parameters which allows for voicing-source waveforms that better approximate natural speech; the spectral characteristics of the fricative source have been improved; and the path used for nasal consonants has an increased number of resonators to better conform to theory. The current synthesis system uses a modified storedpattern data structure which allows better transitions between syllables; however, time-invariant values are used in certain cases in order to decrease the amount of required memory. This system also has a new consolidated method for generating geminate obstruents and syllabic nasals. This synthesizer and synthesis system have been implemented in a re-developed rulebased speech-synthesis module. This module has been constructed using ASIC technology and has both small size (56×36 ×8mm) and light weight (19g); it is therefore possible to embed it in various types of portable or moving machinery. The module can be connected directly to a microprocessor bus and accepts as input sentences which are generated by the host computer. The input sentences are written with the Japanese katakana or romaji syllabaries and other symbols which describe the sentence structure. The syllable articulation rate for one hundred Japanese syllables (including palatalized sounds) is 65 and for sixty-seven syllables (not including palatalized sounds) is 74. The word intelligibility, measured using phonetically-balanced words, is 88.

• 社団法人電子情報通信学会の論文
• 1993-11-25

著者

• Yamaguchi Mikio

  The System & Electronics R & D Center Sumitomo Electric Industries Ltd.

• Hosom Paul-John

  the System & Electronics R & D Center, Sumitomo Electric Industries, Ltd.,

• Hosom Paul-john

  The System & Electronics R & D Center Sumitomo Electric Industries Ltd.

関連論文

• Development of a Rule-Based Speech Synthesizer Module for Embedded Use (Special Section on Speech Synthesis: Current Technologies and Equipment)
• Power Control of a Terminal Analog Synthesizer Using a Glottal Model (Special Section on Speech Synthesis: Current Technologies and Equipment)

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