BPS Chapter 18

the relative loudness of a speaker’s voice while giving a speech

a microphone that attaches to a lapel or a collar

the range of sounds from high to low (or vice versa) determined by the number of vibrations per unit of time; the more vibrations per unit, the higher the pitch, and vice versa

the pace at which a speech is delivered. the typical public speech occurs at a rate slightly less than 120 words per minute

a distinctive way of speaking associated with a particular region or social group