PSYC 212 Lecture Notes - Lecture 15: Acoustic Phonetics, Mcgurk Effect, Formant

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Psyc 212 lecture 15 march 13th. Co-articulation: when we speak, we produce several phonemes per second just talking normally, we omit 10-15 consonants and vowels per second (cid:894)dou(cid:271)le if (cid:455)ou(cid:859)(cid:396)e speaki(cid:374)g (cid:395)ui(cid:272)kl(cid:455)(cid:895). To be able to do this, experienced talkers position their tongue, mouth, etc. in anticipation of the next consonant or vowel, which causes co-articulation. Co-articulation causes an overlap in articulatory or speech patterns. Figure: we have two syllables (cid:862)di(cid:863) a(cid:374)d (cid:862)du(cid:863) which are made up of two phonemes d + i/ d + u. On the right, we have the first two fo(cid:396)(cid:373)a(cid:374)ts fo(cid:396) the sou(cid:374)d (cid:862)i(cid:863) a(cid:374)d the sou(cid:374)d (cid:862)u(cid:863). O(cid:374) the (cid:454)-axis is time, and on the y-axis, is frequency. Remember: the pattern of formants will determine the phoneme we hear. So, to p(cid:396)odu(cid:272)e a sou(cid:374)d that sou(cid:374)ds like (cid:862)i(cid:863), (cid:449)e (cid:373)ust ha(cid:448)e t(cid:449)o phonemes at these particular frequencies. It becomes complicated when you look at the formants corresponding to the sou(cid:374)d (cid:862)d(cid:863).