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An AAC aid is any "device, either electronic or non-electronic, that is used to transmit or receive messages"; [13] such aids range from communication books to speech generating devices. [21] Since the skills, areas of difficulty and communication needs of AAC users vary greatly, an equally diverse range of communication aids and devices is ...
Such display devices have a simpler learning curve than some other devices. Fixed display devices replicate the typical arrangement of low-tech AAC devices (low-tech is defined as those devices that do not need batteries, electricity or electronics), like communication boards.
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.
[29] [30] 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). [28] 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.
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. It was designed to be the successor of the MP3 format and generally achieves higher sound quality than MP3 at the same bit rate. [4] AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications.
If a device does create a voice output, it is referred to as a speech generating device. While the message may take the form of speech output, it may also be printed as a visual display of speech. Many of these devices can be connected to a computer, and in some cases, they may even be adapted to produce a variety of different languages. [15] [22]
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Tangible symbols are a type of augmentative and alternative communication (AAC) that uses objects or pictures that share a perceptual relationship with the items they represent as symbols. A tangible symbol's relation to the item it represents is perceptually obvious and concrete – the visual or tactile properties of the symbol resemble the ...