Levelling or Smothing
Levelling or Smothing It's a phonological process produced in rapid coloquial speech and due to economy of effort. This process takes place at word boundary, mopheme boundary or within the same syllable when front and back diphthons are followed by a schwa / ə/ (1) . These diphthongs are levelled because the second vocallic element (/ ɪ/ or / ʊ/) is elided (2) and to compensate the loss the first vocallic element is lengthened (3) . 2 syllables are reduced to only one. This is a form of reduction or compression. (1) [fa ɪ ə] ▼ (2) [fa ɪ ə] [fa ə] ▼ (3) [f ɑ : ə] These are the 5 cases in which this process can take place: /a ɪ/ + / ə/ = [ ɑ : ə] / e ɪ/+ / ə/ = [e: ə] /ɔ ɪ/+ / ə/ = [ ɔ: ə] /ə ʊ / + / ə/ = [ ɜ: ə ] / a ʊ / + / ə/ = [ ɑ : ə] Let's see the cases one by one [ ɑ : ə] ( /a ɪ/ + / ə/) whitin the same syllable layer [l ɑ : ə] fire [f ɑ : ə] diet [d ɑ : ə] wire [l ɑ : ə] society [s əs ɑ : əti] tyr