AAC meaning in Information Technology ?

Answer:

What is Advanced Audio Coding mean?

Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieved higher sound quality than 20th century MP3 encoders at the same bit rate.

AAC has been standardized by ISO and IEC as part of the MPEG-2 and MPEG-4 specifications. Part of AAC, HE-AAC ("AAC+"), is part of MPEG-4 Audio and is adopted into digital radio standards DAB+ and Digital Radio Mondiale, and mobile television standards DVB-H and ATSC-M/H.

AAC supports inclusion of 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 16 low frequency effects (LFE, limited to 120 Hz) channels, up to 16 "coupling" or dialog channels, and up to 16 data streams. The quality for stereo is satisfactory to modest requirements at 96 kbit/s in joint stereo mode; however, hi-fi transparency demands data rates of at least 128 kbit/s (VBR). Tests of MPEG-4 audio have shown that AAC meets the requirements referred to as "transparent" for the ITU at 128 kbit/s for stereo, and 320 kbit/s for 5.1 audio. AAC uses only a modified discrete cosine transform (MDCT) algorithm, giving it higher compression efficiency than MP3, which uses a hybrid coding algorithm that is part MDCT and part FFT.

AAC is the default or standard audio format for iPhone, iPod, iPad, Nintendo DSi, Nintendo 3DS, Apple Music, iTunes, DivX Plus Web Player, PlayStation 4 and various Nokia Series 40 phones. It is supported on PlayStation Vita, Wii, Sony Walkman MP3, Android and BlackBerry. AAC is also supported by manufacturers of in-dash car audio systems. It is also one of the audio formats used on Spotify.

reference

Full Form	Category
Asia Advisory Council	Academic & Science
Academic Achievement Center	Academic & Science
Aluminum Anodizers Council	Academic & Science
Alumnae Advisory Committee	Academic & Science
American Aerospace Controls	Academic & Science
Argentine Association of Surgery	Academic & Science
Asociación Argentina de Cirugía	Academic & Science
Asociaci Argentina de Cirug	Academic & Science
All Aluminium Conductors	Academic & Science
Audit and Assurance Council	Accounts and Finance
Arish	Airport Code
Advanced Automation Corporation	Business
Agile Analysis Certification	Business
Administrative Advisory Committee	Business
At All Costs	Business
Australian Agricultural Company, LTD.	Business
Aging Advisory Council	Business
Aquaculture Advisory Council	Business
Arcadia Financial, LTD	Business
Asymmetry Analysis Collaboration	Business
Austrian Association of Cinematographers	Business
Advanced Activity Concept	Business
Advanced Armament Corp	Business
Alliance Atlantis Communications	Business
Advanced Auto Clamp	Business
Abysmal Andrew Comics	Business
American Airlines Center	Business
Aluminum Aluminum Chrome	Chemistry
Amino Acid Chelate	Chemistry
Attendance Area Committee	Community
Arlington Arts Center	Community
Art Academy of Cincinnati	Community
All Adult Channel	Community
Arlington Aquatic Club	Community
Arts Administrators of Color	Community
Associate Art Connect (Associ8 Art Connect)	Community
Anthony Abell College	Community
Adoption for All Children	Community
Alternative Augmentative Communication	Community
Ask A Character	Community
AIDS Action Committee	Community
Alternative And Augmentative Communication	Community
Academy for Architectural Culture	Community
American Anglican Council	Community
Alabama Alliance of Churches	Community
American Alpine Club	Community
All Angel Channel	Community
Augmentative or Alternative Communication	Community
Apple Audio Codec	Computer Hardware
Adobe Acrobat Connect	Computing
Arkserve Appliance Centre	Computing
Anime Art Club	Computing
Advance Audio Coding	Computing
Adaptive Ata Control	Computing
Apple Assistance Center	Computing
Alarm Conversion Circuit	Computing
Automatic Area Control	Computing
Abbreviated Address Calling	Computing
Authorizing and Access Control	Computing
Authentication and Accounting Client	Computing
Advanced Access Control	Computing
Augmentative and Assistive Computing	Computing
All Aluminium Conductor	Electronics
Acute Angle Cloud	General
A** And Coochie	General
Advancing Adventures in Communicating	General
Austin Animal Center	General
Autoclaved Aerated Concrete	General
Agility Association of Canada	General
Audiology Awareness Campaign	General
Amps Alternating Current	General
Aluminum Alloy Conductor	General
Acute Angle Closure	General
Airline administrative Communications	General
Autoclave Aerated Concrete	General
Augmentative Alternative Communication	General
Anti Alien Cult	General
Advanced Audio Codec	General
Another Anime Convention	General
Annual Allowable Cuts	General
Advanced Anti Cheat	General
An Amorous Connection	General
Assistive and Augmentative Communication	General
Advanced Auto Clinic	General
Argentinean Automobile Club	General
Argumentative Alternative Communication	General
Advances in Automotive Control	General
Automobile Association of Cambodia	General
Animal Awareness Club	General
Assistive Automotive Center	General
Antimicrob Agents	General
Advanced Accessory Concepts	General
Auxiliary Active Control Valve	General
Association des Autocaristes Canadiens	General
Automatic Air Conditioning	General
Aisin Automotive Casting	General
Auto Avio Construzioni	General
Alexandria Automotive Casting	General
Accident Aftercare	General
Advanced Air Cleaner	General
Accelerated Aging Cycle	General
Alerte Attention Conducteur	General
Arbre A Cames	General
Auburn Automobile Company	General
Automotive Air Conditioning	General
Antique Automobile Club	General
Automotive Aftermarket and Concepts	General
Arabian Automobiles Company	General
Avanti Automotive Corporation	General
Amarillo Area Corvettes	General
Auxiliary Air Control Valve	General
Abarth Assetto Corse	General
Automobile Association of Ceylon	General
Automotive Applications Committee	General
Area Access Control	General
Amerikaanse Automobiel Club	General
Amicale des Anciens de Citroen	General
Awesome Apple CODEC	General
Advanced AERA Concepts	Governmental
Augmentative and Alternative Communication	Governmental
Airport Aircraft Capacity	Governmental
Atlantic Anarchist Circle	Governmental
Alaska Administrative Code	Governmental
Aluminum Anodizing Council's	Governmental
Attack Aircraft Command	Governmental
Alameda Arts Council	Governmental
Advanced Audio Coding	Information Technology
Asian Aviation Center	International
African American Chats	Internet
Application Availability Concept	Internet
Area Above The Curve	Maths
Anesthesia Assistant Course	Medical
acalculous cholecystitis	Medical
Albany Associates in Cardiology	Medical
Acute Allergic Conjunctivitis	Medical
ADP/ATP carrier	Medical
Advisory Appointments Committee	Medical
Antibiotic-Associated Colitis	Medical
Antimicrobial Agents and Chemotherapy	Medical
association cortex	Medical
ATP/ADP carrier	Medical
American Addiction Centers	Medical
Amino Acid Composition	Medical
Animal Appreciation Club	Medical
Army Acquisition Corps	Military and Defence
Alaskan Air Command	Military and Defence
At Any Cost	Military and Defence
Army Air Corps	Military and Defence
Australian Army Cadets	Military and Defence
Activity Address Code	Military and Defence
Acquisition Advice Code	Military and Defence
Advanced Armament Corporation	Military and Defence
All African Convention	Regional
Al Arish, Egypt	Regional
Advanced Audio Compression	Softwares
Aft Access Closure	Space Science
Another Asteroids Clone	Sports
Athletes Advisory Council	Sports
American Athletic Conference	Sports
Athletic Alliance of Chicago	Sports
Appalachian Athletic Conference	Sports
Alternate Area Code	Telecommunication