Definition of Speech Sounds
Speech Sounds - Speech sounds are certain sound heard, produced trough definite actions performed by the organs of speech and used in oral communication. Speech sound are produced voluntarily in the same sense that Organs of Speech are placed in a certain definition position or moved in certain definite ways. An ideal description hould include information concerning the production, transmission and reception stage of sounds. It means it should describe a sound in terms the movement of the organs of speech, the nature of sound which is produced and the feature perceived by the receiver.
A Speech Sounds are classified, first and foremost into vowels and consonants. Vowels are defined, in phonetic terms, as the speech sounds in the production of which there is, in the pharynx and the mouth, no obstruction or narrowing of a degree that would case audible friction. All other sounds are regarded as ‘ consonants’. In terms of their function in a given language, however, some of the sounds determined in phonetic terms. The use of speech for any other purpose, for example, in loud thinking, is rare. Normally, therefore when we produce a speech sound, we intend it to be transmitted and heard. As this is the case, there are clearly three stages at which a speech sound can be studied. : The production stage, transmission, and reception ( hearing) stage.
A Speech Sounds are classified, first and foremost into vowels and consonants. Vowels are defined, in phonetic terms, as the speech sounds in the production of which there is, in the pharynx and the mouth, no obstruction or narrowing of a degree that would case audible friction. All other sounds are regarded as ‘ consonants’. In terms of their function in a given language, however, some of the sounds determined in phonetic terms. The use of speech for any other purpose, for example, in loud thinking, is rare. Normally, therefore when we produce a speech sound, we intend it to be transmitted and heard. As this is the case, there are clearly three stages at which a speech sound can be studied. : The production stage, transmission, and reception ( hearing) stage.
Correspondingly, the speech sound can be described and classified in Articulatory terms, Accoustic terms, and Auditory terms, respectively. In other words, we can describe how the speech organs act in order to produce a given sound ( articulatory terms ); what physical properties it has ( acoustic terms ); and what features of it are perceived by the listener ( auditory terms ).
It is clear from the above discussion that a complete description of a sound must include its description in articulatory, acoustic and auditory terms. Such an exhaustive description, however, is neither easy nor necessary. As the purpose of description in books like the present one to aid the teaching of pronunciation of a language, it should generally suffice to give a description of sounds mainly in articulatory terms and partly in auditory terms.
It is clear from the above discussion that a complete description of a sound must include its description in articulatory, acoustic and auditory terms. Such an exhaustive description, however, is neither easy nor necessary. As the purpose of description in books like the present one to aid the teaching of pronunciation of a language, it should generally suffice to give a description of sounds mainly in articulatory terms and partly in auditory terms.
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