However, this system may be more complicated to learn, more prone to software compatibility problems, and may not be as durable as the dedicated electronic communications devices. See the section on Computer Access for other related products. Communications devices may be operated by pointing with a finger or head-mounted device, by using a keyboard, or by activating a switch. Communication devices may be text or picture based. The mode of communication can be auditory, using synthesized or digitized speech, or visual.
Synthesized speech generates word sounds with a computer sound card.
Digitized speech uses previously recorded speech that sounds more natural than synthesized speech, but offers a more limited vocabulary. Tech Connections does not prescribe or recommend specific products. Instead, we hope to provide you with information about what products are available and what features you may want to look for based on your particular needs.