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39 lines
795 B
39 lines
795 B
From text to speech: The MITalk system
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Tcenter[f3] « Tcenter[f3] * .3/ [T]
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Tcenter[f3] « Tcenter[f3] * .6/ { [+E).(_R] / [ +ER] }
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Bvalb[fl..f3] « Bvalf[fl..f3]
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Temporarily replace Target[f1.£f3] with Diptar[fl.f3] and move
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Cumdur(f1..f3] to Cumdur[f1..f3] + Tcenter[f]..f3], then draw a transition (see
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Figure C-2).
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+— Tedips —l— Tedips —
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Target Diptar
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N
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Mintime Cumdur Cumdur+Tcenter Cumdur+Segdur
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Figure C-2: Diphthong transition smoothing
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Table C-5: Diphthong transition parameters
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Tcdiph Tdmid Tcdiph Tdmid Tcdiph Tdmid
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AA 0 80 AE 100 75 AH 0 0
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A0 110 80 AW 120 70 AXR 125 40
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AY 100 55 EH 60 70 ER 180 50
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EXR 100 50 EY 140 55 IH 90 65
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IXR 100 50 IY 200 45 OW 150 50
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OXR 110 60 oY 150 60 UH 90 65
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UwW 140 55 UXR 150 50 YU 100 45
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C.8 Obstruents
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/[ -sonor, +nasal
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194
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