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High-tech systems may be dedicated devices developed solely for AAC, or non-dedicated devices that run additional software to function as AAC devices. [36] [39] These options are typically more affordable than a dedicated device. Examples of AAC applications that function on non-dedicated hardware include Avaz and Spoken.
[30] [31] AAC devices can be no-tech (sign language and body language), low-tech (picture boards, paper and pencils), or high-tech (tablets and speech generating devices). [29] The choice of AAC device is very important and should be determined on a case-by-case basis by speech therapists and assistive technology professionals.
Some goals of the AAC device include providing the child with a concrete means of communication, as well as facilitating the development of interaction skills [8] [10]. An AAC device is recommended for any nonverbal child, since all individuals needs to be able to communicate.
Stephen Hawking (1942–2018), astrophysicist and prominent SGD user. Speech-generating devices (SGDs), also known as voice output communication aids, are electronic augmentative and alternative communication (AAC) systems used to supplement or replace speech or writing for individuals with severe speech impairments, enabling them to verbally communicate. [1]
ISAAC works to promote augmentative and alternative communication as a known and valued way of communicating worldwide. [6] The society's vision "is that AAC will be recognized, valued and used throughout the world" and the society's mission "is to promote the best possible communication for people with complex needs". [7]
Example of basic PECS communication board. The Picture Exchange Communication System (PECS) is an augmentative and alternative communication system developed and produced by Pyramid Educational Consultants, Inc. [1] PECS was developed in 1985 at the Delaware Autism Program by Andy Bondy, PhD, and Lori Frost, MS, CCC-SLP. [2]
Dynavox produce a range of speech generating devices, including the very small 'Xpress', and the 'Tango', which was designed particularly for children. Its newest device is called the Maestro, which, like the older V+ and VMax+ and M 3 , provides options for multiple communication channels including cell phone , text messaging and e-mail .
Semantic compaction, (Minspeak), conceptually described as polysemic (multi-meaning) iconic encoding, is one of the three ways to represent language in Augmentative and alternative communication (AAC). [1] It is a system utilized in AAC devices in which sequences of icons (pictorial symbols) are combined in order to form a word or a phrase.