Speech Speech Speech is human vocal communication using language. Each language uses phonetic combinations of a limited set of perfectly articulated and individualized vowel and consonant sounds that form the sound of its words (that is, all English words sound different from all French words, even if they are the same word, e.g., "role" or "hotel"), and using those words in their semantic character as words in the lexicon of a language according to the syntactic constraints that govern lexical words' function in a sentence. In speaking, speakers perform many different intentional speech acts, e.g., informing, declaring, asking, persuading, directing, and
Alaryngeal speech family members" but "reported to be largely unintelligible to outsiders". Pharyngeal speech can be produced in the early stages of learning esophageal speech. However both buccal and pharyngeal speech are less clear than trained esophageal speech and "should not be regarded as a desirable or practical primary method of alaryngeal speech". A further importance is to theories of the evolution of human speech since alaryngeal speech shows that speech is not dependent entirely upon evolved anatomy as it can be created using vocal tract anatomy in an adaptive manner. Alaryngeal speech Alaryngeal speech is speech made using sources other than