Abstract
A speech writer is a device by which the energy of speech sounds causes the formation of a series of discrete visual tokens whose number of types is of the same order as the number of distinctive symbols in a written language. In particular a speech writer can take the form of a typewriter operated by voice to form conventional, or nearly conventional, orthography. The first stage in the construction of a speech writer must be concerned with the conversion of the flow of speech into discrete operations. Such operations have been brought within the realm of possibility by recent developments in analysis and synthesis of speech in terms of formants. The present paper deals primarily with the phonetic and graphic aspects of the response and discrimination required of the dictating person and the machine.
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