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Design Example01:23

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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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Using AAC technology to access the world.

Howard C Shane1, Sarah Blackstone, Gregg Vanderheiden

  • 1Children's Hospital Boston, Otolaryngology and Communication Enhancement, 300 Longwood Ave, Boston, MA 02115, USA. Howard.Shane@CHILDRENS.HARVARD.EDU

Assistive Technology : the Official Journal of RESNA
|May 18, 2012
PubMed
Summary
This summary is machine-generated.

Augmentative and alternative communication (AAC) has evolved from aiding face-to-face interaction for physical impairments to providing broader access to information and services online. This shift presents new challenges and opportunities for individuals with complex communication needs.

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Area of Science:

  • Assistive Technology
  • Human-Computer Interaction
  • Communication Sciences

Background:

  • Augmentative and alternative communication (AAC) initially focused on interpersonal communication for individuals with physical disabilities.
  • The evolution of technology has broadened the scope and capabilities of AAC systems.

Purpose of the Study:

  • To describe the significant changes in AAC access over the last 30 years.
  • To highlight the expansion of AAC from interpersonal communication to accessing the World Wide Web.
  • To identify emerging challenges and opportunities in contemporary AAC.

Main Methods:

  • Literature review of AAC technological advancements.
  • Analysis of the changing landscape of communication needs and technological integration.
  • Examination of the shift towards web-based information and service access.

Main Results:

  • AAC technology has transitioned from primarily supporting face-to-face interactions to enabling access to mainstream digital technologies.
  • The focus has broadened to include accessing information and services on the World Wide Web.
  • AAC now serves a wider population with diverse and complex communication requirements.

Conclusions:

  • Contemporary AAC is integral to digital inclusion, extending beyond basic communication.
  • The expansion of AAC necessitates addressing new technical and user-centered challenges.
  • Future developments in AAC will likely focus on seamless integration with evolving digital environments and diverse user needs.