Year: 1978
Type: report
Abstract: SECURITY CLASSIF ICATION OF THIS PAGE(JTh an Data Ent.r.d) ( Cont 'd) 4 s described which is based on an area function model representing the vocal tract as a set of 14-cross-sectional areas. Area functions representing phoneme steady states (nuclei) and transitions between any ordered pair of phonemes (dyads) are stored in a dyad table. Given an input phoneme string , the synthesizer selects the corresponding sequence of nuclei and transitions and interpolates between each of the 14 cross-sectional areas , producing a model of the shape of the vocal tract changing in time . The filtering process of this vocal tract model is identical to the optimum inverse filter of linear prediction analysis, allowing direct conversion to linear predictive coding (LPC) synthesis. A terminal analog synthesizer is also described . , P-a rm i ~.s-~~... leg-'s ~nEhsaise ~ i ~ ~~~~~~~~~~~~~~~~~ Diagnostic Rhyme Tests ( DRT) of vocoder performance for two male speakers yielded scores of 70.6% using area function dyad synthesis and 83.5% f or terminal analog synthesis.1-.
DOI: 10.21236/ada060115
Author: B. T. Oshika
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W180835487