Speech is the vocalized form of human communication. It is based upon the syntactic combination of lexicals and names that are drawn from very large (usually about 10,000 different words) vocabularies. Each spoken word is created out of the phonetic combination of a limited set of vowel and consonant speech sound units. These vocabularies, the syntax which structures them, and their set of speech sound units differ, creating the existence of many thousands of different types of mutually unintelligible human languages. Most human speakers (polyglots) are able to communicate in two or more of them. The vocal abilities that enable humans to produce speech also provide humans with the ability to sing.
A gestural form of human communication exists for the deaf in the form of sign language. Speech in some cultures has become the basis of a written language, often one that differs in its vocabulary, syntax and phonetics from its associated spoken one, a situation called diglossia. Speech in addition to its use in communication, it is suggested by some psychologists such as Vygotsky is internally used by mental processes to enhance and organize cognition in the form of an interior monologue.
Speech is researched in terms of the speech production and speech perception of the sounds used in vocal language. Other research topics concern speech repetition, the ability to map heard spoken words into the vocalizations needed to recreated that plays a key role in the vocabulary expansion in children and speech errors. Several academic disciplines study these including acoustics, psychology, speech pathology, linguistics, cognitive science, communication studies, otolaryngology and computer science. Another area of research is how the human brain in its different areas such as the Broca's area and Wernicke's area underlies speech.
It is controversial how far human speech is unique in that other animals also communicate with vocalizations. While none in the wild have compatibly large vocabularies, research upon the nonverbal abilities of language trained apes such as Washoe and Kanzi raises the possibility that they might have these capabilities. The origins of speech are unknown and subject to much debate and speculation.
Other articles related to "speech":
1975) set up the following classification of illocutionary speech acts assertives = speech acts that commit a speaker to the truth of the expressed proposition ... requests, commands and advice commissives = speech acts that commit a speaker to some future action, e.g ... promises and oaths expressives = speech acts that express on the speaker's attitudes and emotions towards the proposition, e.g ...
... During his acceptance speech Pearson criticised American bombing of Vietnam, The seemingly harmless speech infuriated former President Lyndon B ... Pearson later apologized for the speech ...
... Festival is a general multi-lingual speech synthesis system originally developed by Alan W ... Black at Centre for Speech Technology Research (CSTR) at the University of Edinburgh ... It offers a full text to speech system with various APIs, as well as an environment for development and research of speech synthesis techniques ...
... FreeTTS is an open source speech synthesis system written entirely in the Java programming language ... FreeTTS is an implementation of Sun's Java Speech API ... FreeTTS supports end-of-speech markers ...
... Along with the change in her speech, she also began to have seizures ... of Texas at Dallas has sound clips of her speech from before the incident, and after her speech had been affected ...
Famous quotes containing the word speech:
“It is clear that not in one thing alone, but in many ways equality and freedom of speech are a good thing.”
—Herodotus (c. 484424 B.C.)
“Three words that still have meaning, that I think we can apply to all professional writing, are discovery, originality, invention. The professional writer discovers some aspect of the world and invents out of the speech of his time some particularly apt and original way of putting it down on paper.”
—John Dos Passos (18961970)
“I thought my razor was dull until I heard his speech and that reminds me of a story thats so dirty Im ashamed to think of it myself.”
—S.J. Perelman, U.S. screenwriter, Bert Kalmar, Harry Ruby, and Norman Z. McLeod. Groucho Marx, Horsefeathers, as a newly-appointed college president commenting on the remarks of Huxley Colleges outgoing president (1932)