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Context-dependent rules for PHONET
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Oldval[f2] « 1600/ [ *al"e°§a’ ’ NN] [ -lateral]
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Oldval[f3] « 2300/ [ +31V§°1‘“] [ +retro
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Oldval(f3] « 2620 [ *alvgotar | [ -reiro |
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Add f1 and f2 vowel targets to compute f2 locus for velar (f1 reflects lip-
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rounding and f2 reflects fronting components of systematic shift in locus):
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Oldval[f2] « Target[f2] + (Target[f1] - 300)*2 / [ +V§Iar]_
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Oldval[f3] « Oldval[f2] + 800 / [ +V§1af] [ +1fl9_ial]
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Oldvallf3] « Olavalff2] + 400/ | *'gr][ labial |
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Oldval[f2,f3] ¢ xe-target(f2,f4] / { [+ff.m] / [T-‘-A] }
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f2 lower in NG:
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Oldval[f2,£3] « (Oldval[f2,£3] + Target[f2,£3])/2 / [ +§G]_
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Fronted articulation of KK, GG, and NG adjacentto IY and IH:
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Oldval[f2] T 250, Oldval[f3] T 50/ { [ +_I_Y] / [ wfl] }
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(end of manner class reversal)
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C.9.2 All segments
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J—
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Oldval[f2, f3, f4] « 1200, 2050, 2500, Bper[f4] « O, Tcf[f4] < 30/
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[ +a1veol§r, .-!-stop] [ +WW]
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Target[f2, 3] « 1850, 2200, Target[f4] T £4 /
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+rglide ] /[ +retro +alveolar]
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S S —
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Target[f2, £3] « 1700, 1900 /
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([T} [
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199
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