9.2720 Phonetics and Phonology Phonological explanations with their roots in linguistic structure are circular and, thus non-explanatory. True explanation must be sought in non-linguistic domains. Physical Factors Articulatory system Perceptual system Evolutionary Viewpoint Language has evolved under conditions of its use.
Language uses the vocal-auditory channel.
Language should exhibit adaptation to the vocal-auditory channel. It is possible to continue voicing by expanding the oral cavity, lowering the larynx, or expanding the pharynx. This costs energy . Example of perception shaping phonology Typologically, nasals and stops are more likely to assimilate to the place of a following consonant than other types of consonants are. Place information for fricatives is in the fricative portion.