Neurological disability technology options: Talking calculators
Talking calculators
Description
These are calculators which, as well as a visual display, provide digitised speech output (a human voice is stored electronically). Depending on model and setting, the speech can echo keys being pressed. Results of calculations can also be announced by the digitised speech output. Some models are made ostensively for the use of people who have a vision impairment and are available through blindness agencies. They range from relatively inexpensive, basic calculators to those offering powerful features at correspondingly higher prices. Others are low cost, very basic calculators, sold through such places as electronics stores and mail order outlets. Such products are often seen as having novelty value and specific examples can disappear from the market very quickly. At the time of writing, none of these could be located.
Advantages
For people who, for any reason, have difficulty using a visual display, speech output can be helpful. The speech can serve to reinforce the visual display. If desired or necessary, it can be used without reference to the visual display. Models which echo key presses are helpful to those who cannot see the keys or who benefit from the reinforcement provided by the speech output.
Disadvantages
If, as is often the case, an earphone facility is not provided, use in a classroom setting can be distracting for others. One problem, which is not inherent in the technology itself, is that particular examples can disappear from the marketplace very quickly. Examples which cost a comparable amount to non-speaking calculators do not have more than basic functions.
