LING 2007 Lecture Notes - Lecture 13: Intercostal Muscle, Egressive Sound, Vocal Tract

• School: Carleton University
• Department: Linguistics
• Course: LING 2007
• Professor: Bethany Mac Leod

Document Summary

Fi(cid:374)d the (cid:373)istake q(cid:859)s are just fi(cid:454)i(cid:374)g (cid:271)ased o(cid:374) rules. Airstream mechanism direction depends on language and sound. All work by changing sir pressure in vocal tract. Bo(cid:455)le(cid:859)s la(cid:449): the pressure of a gas (cid:448)aries i(cid:374)(cid:448)ersel(cid:455) (cid:449)ith its (cid:448)olu(cid:373)e: gas moves to equalize different pressures. Direction of air pressure depends on airpressure. Intercostal muscles expand, lungs expands, air pressure decreases, air goes in. Pulmonic sounds (most languages have this type of sounds) airstream mechanism 1airflow set in motion by lungs. Direction if airflow can differ by speech sound: egressi(cid:448)e= air flo(cid:449) out of the lu(cid:374)gs ((cid:373)ajorit(cid:455) of sou(cid:374)ds i(cid:374) (cid:449)orld(cid:859)s la(cid:374)guage are pulmonic egressive) ingressive= air flow into the lungs (exceedingly infrequent) Glottalic sounds (most common type of non-pulmonic) mechanism 2 larynx can move up and down, can cause changes in air pressure in the cavity above pharynx. Glottalic egressive sounds= ejectives: air comes out fast and forcefully. Can have contrastive ejectives with pulmonic stops.