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Augmentative and alternative communication. An AAC user indicates a series of numbers on an eye gaze communication board in order to convey a word. Augmentative and alternative communication ( AAC) encompasses the communication methods used to supplement or replace speech or writing for those with impairments in the production or comprehension ...
Open access. Open access logo, originally designed by Public Library of Science. A PhD Comics introduction to open access. Open access ( OA) is a set of principles and a range of practices through which research outputs are distributed online, free of access charges or other barriers. [1]
Fraunhofer FDK AAC is an open-source library for encoding and decoding digital audio in the Advanced Audio Coding (AAC) format. Fraunhofer IIS , developed this library for Android 4.1 . [6] [7] It supports several Audio Object Types including MPEG-2 and MPEG-4 AAC LC, HE-AAC (AAC LC + SBR ), HE-AACv2 (LC + SBR + PS ) as well AAC-LD (low delay ...
Aaron Swartz, software developer and creator of the Manifesto. The Guerilla Open Access Manifesto is a document written by Aaron Swartz in 2008 that supports the Open Access movement. The goal of the Open Access movement is to remove barriers and paywalls that may prohibit the general public from accessing scientific research publications.
Evolution from MPEG-2 AAC-LC (Low Complexity) Profile and MPEG-4 AAC-LC Object Type to HE-AAC v2 Profile. [2] High-Efficiency Advanced Audio Coding ( HE-AAC) is an audio coding format for lossy data compression of digital audio defined as an MPEG-4 Audio profile in ISO / IEC 14496–3. It is an extension of Low Complexity AAC (AAC-LC) optimized ...
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] SGDs are important for people who have limited means ...
Spoken (also known as Spoken - Tap to Talk AAC and Spoken AAC) is a mobile application and augmentative and alternative communication (AAC) tool launched in 2019. The app was designed to aid individuals with speech and language impairments like aphasia or nonverbal autism, using a combination of symbols, text, and voice output.
Advanced Audio Coding is designed to be the successor of the MPEG-1 Audio Layer 3, known as MP3 format, which was specified by ISO / IEC in 11172-3 ( MPEG-1 Audio) and 13818-3 ( MPEG-2 Audio). Blind tests in the late 1990s showed that AAC demonstrated greater sound quality and transparency than MP3 for files coded at the same bit rate.