PSY345H5 Lecture Notes - Lecture 7: Language Pedagogy, Lip Reading, Audiology
Document Summary
We need to understand how sound works to understand hearing impairments. Loudness: amplitude (db); higher the wave, louder the sound. Pitch: frequency (hz); higher or lower pitched sound and is determined by the frequency of these sound waves. The higher the frequency, the greater # of oscillations within the greater amount of time, the higher the frequency. It pushes the air particles harder: the # of times the sound waves cycles, the greater the pitch of the sound. How many cycles occur within one particular second. As we get older, we lose high frequency and is usually 13,000- Loudness and pitch are really imp for the perception of speech: timbre is the quality of sound. You can take a sound with same # of loudness and pitch but (cid:271)e(cid:272)ause it is p(cid:396)odu(cid:272)ed diffe(cid:396)e(cid:374)tl(cid:455) it sou(cid:374)ds diffe(cid:396)e(cid:374)tl(cid:455). Saxophone is associated with the vibration of metal and there is different waves sounds are produced.
