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From text to speech: The MITalk system
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There are a few words ending in xion, such as complexion, in which the pronun-
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ciation KK SS, asin complex, is changed to XK SH.
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The suffix ion itself, which is pronounced IY - AX NN in some contexts
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(e.g. centurion, accordion), loses the pronunciation of the first vowel, which ap-
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pears to be absorbed into the palatalized consonant, and is pronounced Ax NN after
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the affricates (all those examples given above). The segment IY becomes more of
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a glide after 1 and n, and is given the pronunciation YY AX NN in such words as
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rebellion and dominion.
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The palatalization rules for the suffix ure are slightly less dependent upon
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context. The letters t and d are pronounced CH and JJ, respectively (e.g. vesture,
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verdure). The letter s follows the same rules as when it precedes the suffix ion,
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i.e., itis sH afterlands (e.g. pressure), zH after r or a vowel (e.g. exposure), and
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cH after n, as in tonsure. A rule is also provided for x preceding ure, changing XX
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SS to KK SH, as in flexure.
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5.4.5 The suffix ic
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Preceding the front vowels represented in the orthography by e, i, and y, the suffix
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ic is changed in pronunciation from IH KX, which contains the velar Kk, to the
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more fronted alveolar-containing TH SsS (e.g. electricity).
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5.5 Stress modification rules
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A compound stress rule is applied to words decomposed into more than one root or
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bound root. The primary stress (or 1-stress) is retained on the leftmost root.
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Primary stress on other roots is reduced to secondary (or 2-stress) as in houseboat
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(1-stress on house and 2-stress on boat).
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Suffixes which shift the primary stress in a word, such as ee, eer, esce, and
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ation are entered in the morph lexicon with primary stress. The stress on any root
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to which they attach is reduced to secondary (e.g. trainee, auctioneer). This is
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implemented by checking for primary stress on the leftmost derivational suffix and
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reducing the root stress when the suffix stress is found.
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5.6 An example |
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The input files from PARSER and the output file resulting from SOUNDI1’s opera-
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tion for the sentence:
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Priscilla noted the houseboat’s reflection.
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are shown in Figure 5-1. The symbols * and - denote morph and syllable boun-
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daries, respectively.
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The word Priscilla is not found in the lexicon. This fact is noted in the
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PARSER output file by the lack of => notation after its spelling. The pronuncia-
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