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From text to speech: The MITalk system
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6.3.7 Strong First Syllable Rule (noncyclic)
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1.V = 2-stress / CO[ -Stress, long]X
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a. Assign 2-stress to the vowel in the first syllable if it is long
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(e.g. hydrosanitation—HHE "AY DD RR OW SS ’AE NN IH
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TT ’‘EY SH AX NN, dielectric—DD "AY ’YEH LL ’‘EH KK
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TT RR IH KK).
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2.V — 2-stress / CO[ -stress] CX
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a. Assign 2-stress to the vowel in the first syllable if it is fol-
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lowed by at least two consonants (e.g. circumnavigation —
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SS "AH RR KK AH MM NN ’AE VV IH GG 'EY SH AX NN).
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6.3.8 Cursory Rule
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1.V — 2-stress /¥ [ l's{f,ess] Cy— CVX
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where Y contains no 1-stress.
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a. The vowel following the primary-stressed vowel, if it is not
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the last vowel in the word, is shortened and its stress removed
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(e.g. infirmary—"IH NN FF ‘AH RR MM (")AE RR IY,
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Cursory —KxK ‘AH RR SS (")AO RR IY, curative—>KK YY
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‘UH RR (")AE TT IH VV).
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This has provision for one class of exceptional suffixes. If the pattern CVX in the
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rule above matches a string of suffixes from the “ignored” category of the Main
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Stress Rule, then the Cursory Rule is suppressed for this case.
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6.3.9 Vowel Reduction Rule
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This rule reduces unstressed short vowels to the appropriate schwa. The action (V
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— reduce) indicates that Ex and IH are changed to 1x while all other short
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vowels are changed to ax.
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1.V — reduce / X [ -stresE,_short] Y
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where the rule may match more than once per word.
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a. Reduce EH and 1Hto IX if not stressed (e.g. ptolemaic— TT
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‘A0 LL IX MM ’'EY IX KK).
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b. Reduce other short unstressed vowels to ax (e.g. curator—
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KK ‘UH RR AX TT AX RR).
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68
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