Noting that the progressive aging of the American population has created a need for a body of knowledge about the vocal characteristics associated with aging, this paper provides information on geriatric voice. The first section of the paper contains a selected bibliography of materials concerning geriatric voice, including literature on the need for research on how aging affects the voice; the physiological changes that produce voice changes; the perceived characteristics of the geriatric voice, such as slow rate, imprecise articulation, hoarseness, and laryngeal tension; and the objective measurement of the aged voice. The second section briefly describes an original research project on the geriatric voice that has implications for communication specialists. This section discusses the methodology used to collect data about the vocal characteristics of 20 young adults and 20 older adults. It also reports the results of the research, indicating what speech characteristics changed over time and how the objective measures used could apply to the diagnosis of abnormalities in the geriatric voice. (RL)