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Topic: HE-AAC

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Advanced Audio Coding - Wikipedia, the free encyclopedia AAC, which was first specified in the standard known formally as ISO/IEC 13818-7, was published in 1997 as a new "part" (distinct from ISO/IEC 13818-3) in the MPEG-2 family of international standards. AAC is a wideband audio coding algorithm that exploits two primary coding strategies to dramatically reduce the amount of data needed to convey high-quality digital audio. In contrast to MP3's hybrid filterbank, AAC uses the modified discrete cosine transform (MDCT) together with the increased window lengths of 2,048 points. en.wikipedia.org /wiki/Advanced_Audio_Coding   (1420 words)

American Adoption Congress (AAC) - Adoption Encyclopedia The organization comprises 11 regions, and according to the AAC, its 1,500 members include agencies, search/support groups and individuals, such as adopted adults, birthparents, adoptive parents, siblings, and adoption mental health, medical and legal professionals, throughout the United States, Canada, Europe, Mexico, Australia and New Zealand. The AAC holds one national conference each year; regional and local conferences are also held. Formed in 1978, the American Adoption Congress is a nonprofit national organization of search groups and individuals interested in changing legislation, attitudes and policies in order to guarantee access to identifying information to all adopted individuals and their birthparents and adoptive families. encyclopedia.adoption.com /entry/American-Adoption-Congress-AAC/41/1.html   (261 words)

Apple - QuickTime - Technologies - AAC Audio AAC was developed by the MPEG group that includes Dolby, Fraunhofer (FhG), ATandT, Sony and Nokia—companies that have also been involved in the development of audio codecs such as MP3 and AC3 (also known as Dolby Digital). AAC compressed audio at 128 Kbps (stereo) has been judged by expert listeners to be “indistinguishable” from the original uncompressed audio source.* AAC compressed audio at 96 Kbps generally exceeded the quality of MP3 compressed audio at 128 Kbps. www.apple.com /quicktime/technologies/aac   (408 words)

AAC - Hydrogenaudio Knowledgebase AAC or 'Advanced Audio Coding' forms part of the latest specifications from the MPEG committee, and is their official successor to the popular MP3 format. AAC is supported on some hardware players, most notably the Apple iPod and some cell phones, and is available in Apple's online store. There are several AAC encoders to choose from, coming from large names such as Apple (iTunes), Real Networks and Nero AG (Creators of Nero Burning Rom), or the open source FAAC which is analogous to the LAME encoder. wiki.hydrogenaudio.org /index.php?title=AAC   (681 words)

Home of AAC Adoption AAC's 10th year of Homeland tour to Korea was successful all adoptive children and families met their birth moms and dad, foster moms, visit the birth hospitals or birth places and Korean Agency. AAC is collecting new and gently used baby / toddler items for the Orphanages in China and Korea. AAC will be closed on the following day to spend time with family and friends for the holidays...... aacadoption.com   (526 words)

Augmentative and Alternative Communication Centers It is maintained by the Barkley AAC Center and the Munroe-Meyer Institute for Genetics and Rehabilitation at the University of Nebraska. This AAC website is designed to provide access to a wide range of information and resources related to the AAC effort. Augmentative and alternative communication (AAC) strategies assist people with severe communication disabilities to participate more fully in their social roles including interpersonal interaction, learning, education, community activities, employment, volunteerism, care management, and so on. aac.unl.edu   (131 words)

CoreAAC AAC means 'Advanced Audio Coding', and in the beginning it was also called MPEG-2 NBC for 'Non-Backwards Compatible' as opposed to the MPEG-1 and MPEG-2 BC (with 5.1 channels) standards. CoreAAC is a DirectShow-Decoder for the AAC audio codec, it allows you to play files containing AAC-audio in many players, for example 'Windows Media Player', 'Media Player Classic' or 'The Core Media Player'. AAC is able to include 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 15 low frequency enhancement (LFE, limited to 120 Hz) channels and up to 15 data streams. coreaac.corecodec.org   (196 words)

AudioCoding.com - Knowledge Base AAC means "Advanced Audio Coding", and in the beginning it was also called MPEG-2 NBC for "Non-Backwards Compatible" as opposed to the MPEG-1 and MPEG-2 BC (with 5.1 channels) standards. This became more obvious with the standardization and implementation of HE AAC / aacPlus, as the older extensions were also aiming at a higher coding efficiency for low bitrates, but mostly for special purposes like speech coding. MPEG-4 AAC Version 3 including HE AAC and Parametric Audio Coding www.audiocoding.com /modules/wiki?page=AAC   (1529 words)

MPEG . ORG - MPEG-2 Advanced Audio Coding (AAC) AAC is more efficient than MP3 (MPEG-1 Layer 3) and is the state of the art in audio compression technology. AAC used to be called NBC (Non-Backward-Compatible), because it is not compatible with the MPEG-1 audio formats. AAC (Advanced Audio Coding) is one of the audio compression formats defined by the MPEG-2 standard. www.mpeg.org /MPEG/aac.html   (343 words)

MPEG-4 Licensing FAQ In the case of a quarterly reset, total royalties are calculated against the number of AAC channels shipped that quarter starting at the quantity one price, regardless of the number of AAC channels shipped during the previous quarter. Yes, the MPEG-2 AAC Low Complexity Profile is a compatible subset of MPEG-4 AAC, and is therefore covered by the MPEG-4 AAC patent license. What is meant by a "reset" in the AAC royalty rate schedule? www.vialicensing.com /products/mpeg4aac/licenseFAQ.html   (792 words)

OVOLAB - About AAC AAC, which stands for Advanced Audio Coding, part of the MPEG-4 specification, is a powerful, high-quality audio codec designed to compress audio files to smaller sizes than MP3, while delivering a better quality. According to Apple, expert listeners have judged AAC audio files compressed at 128 kbps (stereo) to be virtually indistinguishable from the original uncompressed audio source, whereas MP3 files at the same bitrate (taking up the same amount of space on your disk) contain audible artifacts. AAC audio files are supported by iTunes 4 and the iPod. www.ovolab.com /aachoo/aboutaac   (354 words)

MPEG-4 AAC Standard Advanced Audio Coding (AAC) is a wideband audio coding algorithm that exploits two primary coding strategies to dramatically reduce the amount of data needed to convey high-quality digital audio. The MPEG-4 AAC standard incorporates MPEG-2 AAC, forming the basis of the MPEG-4 audio compression technology for data rates above 32 kbps per channel. Efficient audio compression is achieved by a variety of perceptual audio coding and data compression tools, which are combined in the MPEG-4 AAC specification. www.vialicensing.com /products/mpeg4aac/standard.html   (185 words)

Association of ATOL Companies AAC members are licensed under the Civil Aviation Authority Air Travel Organisers Licence (ATOL) programme and are committed to working with the whole of the travel industry to push forward a integrated approach to bonding so as to ensure protection for members' customers. The AAC ensures members' views are heard by opinion formers in Government, the Civil Aviation Authority and other trade bodies including ABTA and British Airways. Would you like to discover how you could benefit from membership of the AAC? www.aac-uk.org   (127 words)

Royal Air Force - United Kingdom Armed Forces - Overview The gliders were operated by the AAC and flown by crews from the GPR. First the AAC operated a number of squadrons and flights equipped with Auster light planes and Skeeter helicopters. Personnel and equipment still report to the AAC command, but to save cost and streamline joint operations the units works under one command with elements of the FAA and RAF. www.scramble.nl /mil/1/raf/main-aac.htm   (606 words)

Augmentative and Alternative Communication at The Pennsylvania State University The focus group discussion and the data analysis of individuals who use AAC and have ALS has been completed; the second focus group, composed of individuals who have Cerebral Palsy, is currently in progress; recruitment has begun for the third focus group, which will consist of individuals who have aphasia. Participants in the first study are AAC users who are employed, employers of individuals who use AAC, vocational rehabilitation counselors working with individuals who use AAC, and family members of AAC users who are employed. The second study will include ten young adults who use AAC and are looking for employment, and facilitators (e.g., family members, teachers) who are working with the individuals who are seeking employment. aac.hhdev.psu.edu /research/employment.html   (775 words)

Fraunhofer IIS - Audio & Multimedia - MPEG-2 AAC It is called MPEG-2 Advanced Audio Coding (AAC) and was declared international standard by MPEG by the end of April 1997. The driving force to develop AAC was the quest for an efficient coding method for surround signals, like 5-channel signals (left, right, center, left-surround, right-surround; see Fig. MPEG-2 AAC is the consequent continuation of the truly successful coding method ISO/MPEG Audio Layer-3 developed in Erlangen. www.iis.fraunhofer.de /amm/techinf/aac   (775 words)

Autoclaved Aerated Concrete Products AAC products are generally 1/5 the weight of concrete but with a thermal mass to deliver a high degree of energy efficiency. Specialized AAC concrete products are uniquely different from the traditional concrete blocks found in North America today. We've solved all that with these specialized, low-cost tools that are expressly designed for AAC Systems to do the job right. www.demandproducts.com /aac.html   (239 words)

YAACK: Augmentative Communication Resource Guide for Young Kids YAACK is based on the premise that the purpose of AAC is to assist the child in attaining the quality of life that approaches the level of satisfaction and meaningfulness that would have been possible if the child did not have a communication disability. The second section, Choosing an AAC system covers the AAC assessment, describes characteristics of and issues relating to the different AAC systems and devices that are in use today, and includes information on how to obtain a device. (See Table of Contents.) The first, How to get started gives background on AAC, lists specific organizations that provide support and assistance to children with AAC needs and their families, and offers suggestions on how to create and maintain an effective AAC team. aac.unl.edu /yaack   (808 words)

AAC INFORMATION PAGE MPEG-2 AAC is the Data Compression for the 21st Century and AAC shall be incorporated The AAC Main 128 was indistinguishable from the original for 80% of professional AAC (MPEG2-AAC) is an encoding scheme designed to www.fortunecity.com /tinpan/miles/528/aacinfo.htm   (823 words)

RareWares An evolution of Nencode, NAACenc allows setting the Nero AAC switches on the command line, and can find the needed DLLs at the folder they are installed by Nero - no need to put them in the same folder. A command line AAC encoder that uses the Nero AAC DLLs: aacenc32.dll, aac.dll, aacmp32.dll, wav.dll and NeroIPP.dll - by darp - sources included This frontend boasts another interesting feature, compared to the other options: You only need aacenc32.dll and NeroIPP.dll from Nero installation to run it - you don't need to have Nero installed, nor to use the other DLLs required by other frontends. www.rarewares.org /aac.html   (509 words)

scope : education It is not easy to learn a second language, which is what AAC is, and unless it’s fun and quickly successful in helping the user to control their lives and achieve what they want, they will give up or not give it the effort it requires. The next three modules provide curricula to assist in developing the communication abilities of people who will benefit from using AAC, whether they are developing normally other than their ability to communicate through speech, or have additional physical and sensory difficulties. Funding for the project to write and produce Supporting Communication through AAC was provided by the DfES (Department for Education and Skills) Small Programmes Fund. www.scope.org.uk /education/aac.shtml   (735 words)

RecordStoreReview.com : Apple iTunes AAC vs. CD, How Close Is It? In Part 1 and Part 2 of this test I looked at the relative quality of AAC to MP3 using various settings and bitrates for each of the compressed formats. The store uses 128 kbit AAC to encode its tracks so many people now are making significant investments in AAC as a future standard. In my previous tests, I found AAC to be lacking in many ways so I thought it was important to see how it sounded now that people were paying for it. www.recordstorereview.com /misc/aacmp3.shtml   (958 words)

Association des Amidonneries de Céréales de l'Union Européenne The AAC — Association des Amidonneries de Céréales de l'UE — is the trade association which represents the interests of the European cereal starch industry both at European and international level. The starch industry extracts starch from cereal grains and processes it into several hundreds products, from native starches to physically or chemically modified starches, liquid and solid sugars. www.aac-eu.org   (111 words)

MP3' Tech - Mpeg2/4-AAC AAC has been selected for use within the Digital Radio Mondial (DRM) system. Due to its superior performance, AAC should also play a major role for the delivery of high-quality music via the Internet. AAC also introduces some new tools over previous coding schemes: www.mp3-tech.org /aac.html   (392 words)

Association for Assessment in Counseling (AACE) Home Page (AACE) is an organization of counselors, educators, and other professionals that advocates the counseling profession by providing leadership, training, and research in the creation, development, production, and use of assessment and diagnostic techniques. The AACE website was launched in 1996 by Bob Wilson and redesigned in 2001 by Joe Miner. It is now possible to join AACE without membership in the American Counseling Association (ACA). aac.ncat.edu   (413 words)

UTD/Callier Center Furthermore, because of time demands of activities of daily living, therapies, and development of self-help skills, children, who use AAC and are at risk for reading problems, frequently receive less reading instruction than their normal peers (Koppenhaver, Evans, and Yoder, 1991). Many teachers report having difficulty integrating AAC technology into the literacy development process and/or identifying strategies for teaching reading and spelling to a child who cannot sound out or physically write words. Positive attitudes of AAC users, parents, and teachers towards literacy are important. www.callier.utdallas.edu /ACT/res.html   (2752 words)

Anglo-Austrian Circle Students Club, Graz The AAC Students Club web site is packed with information for everyone interested in familiarizing themselves with our exciting multi-cultural agenda. The AAC Students Club is not the world's easiest thing to define. The AAC has a long and fascinating history. www.anglo-austrian.at   (657 words)

Encyclopedia.it: Audio AAC: Tutte le informazioni su AAC su Encyclopedia.it MB ATI RAGE 128 Video: Audio: Uscita audio a 16 bit... www.encyclopedia.it /elettronica/audio   (544 words)

What is AAC? - A Word Definition From the Webopedia Computer Dictionary AAC is sometimes referred to as MPEG-2 NBC (not backwards compatible) because it is not compatible with the MPEG-1 coding scheme. AAC boasts higher quality audio reproduction than MP3 and requires 30% less data to do so. Information about AAC technology, applications, products, and industry developments. www.webopedia.com /TERM/A/AAC.html   (127 words)

Access to Communication and Technology (ACT) - Homepage The AAC Care Pathway Documentation has been amended as a result of the pilot and is now avalible for download. The first meeting of the new AAC Care Pathway SIG is to be held on the 20th June 05. The EC Care Pathway Pilot has now finished and the Project Report is avaliable here. www.wmrc.nhs.uk /act   (238 words)

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