Human Factors Speech Communication,
ROYAL NAVAL PERSONNEL RESEARCH COMMITTEE LONDON (ENGLAND)
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In face to face conversation there are many cues, beside the spoken word, to help toward better, and quicker exchange of ideas. These cues include such things as facial expression, and conscious and unconscious gesture. There is often also background knowledge which the two speakers have about each other, their positions, interests and so on, by which each knows what kind of things the other is likely to say. Such factors make it possible for utterances to be briefer and more cryptic for ideas to be exchanged more quickly, than is possible, for example, between two strangers who are not familiar with each others dialects, who are talking on a bad telephone circuit. This handbook is however more concerned with cases in which the speech has to be transmitted electrically for some distance, great or small. But however great the distance, the two people who are speaking should be considered first, the apparatus of transmission second.
- Voice Communications