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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.
MPEG-4 Part 3 or MPEG-4 Audio is the third part of the ISO/IEC MPEG-4 international standard developed by Moving Picture Experts Group. It specifies audio coding methods. The first version of ISO/IEC 14496-3 was published in 1999.
Ajit Kumar Doval is a bureaucrat, spymaster and National Security Advisor (NSA) of India to Prime Minister Narendra Modi. He was Intelligence Bureau (IB) chief and Indian Police Service (IPS) officer from Kerala cadre.
In genetics, a missense mutation is a point mutation in which a single nucleotide change results in a codon that codes for a different amino acid. It is a type of nonsynonymous substitution.
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 for low-bitrate applications such as streaming audio. The usage profile HE-AAC v1 uses spectral band replication (SBR) to enhance the modified discrete cosine transform (MDCT) compression efficiency in the frequency domain. The usage profile HE-AAC v2 couples SBR with Parametric Stereo (PS) to further enhance the compression efficiency of stereo signals.
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 of spoken or written language. AAC is used by those with a wide range of speech and language impairments, including congenital impairments such as cerebral palsy, intellectual impairment and autism, and acquired conditions such as amyotrophic lateral sclerosis and Parkinson's disease. AAC can be a permanent addition to a person's communication or a temporary aid. Stephen Hawking, probably the best-known user of AAC, had amyotrophic lateral sclerosis, and communicated through a speech-generating device.
The Innovators Under 35 is a peer-reviewed annual award and listicle published by MIT Technology Review magazine, naming the world's top 35 innovators under the age of 35.
Chaudhary Ajit Singh was an Indian farmer leader and politician. He was the founder and chief of the Rashtriya Lok Dal, a political party recognised in the state of Uttar Pradesh. He was son of the former Prime Minister of India Chaudhary Charan Singh. He tested positive for COVID-19 and was subsequently admitted to a hospital in Gurugram. He died on 6 May 2021 after his condition deteriorated.
The National Security Advisor is the senior official on the National Security Council of India, and the chief advisor to the Prime Minister of India on national security policy and international affairs. In 2019, the term of Ajit Doval the current NSA was extended for another 5-year term, and has been assigned the rank of a Union Cabinet Minister and ranks at the seventh position in the Indian Order of Precedence.
Mayankodu Kelath Narayanan is a former Indian Police Service officer. He was National Security Advisor of India from 2005 to 2010, assuming the role after the demise of his predecessor Jyotindra Nath Dixit in January 2005. Subsequently, he served as 19th Governor of West Bengal from 2010 to 2014. The Government of India awarded him the civilian honour of Padma Shri in 1992.
MPEG-4 SLS, or MPEG-4 Scalable to Lossless as per ISO/IEC 14496-3:2005/Amd 3:2006 (Scalable Lossless Coding), is an extension to the MPEG-4 Part 3 (MPEG-4 Audio) standard to allow lossless audio compression scalable to lossy MPEG-4 General Audio coding methods (e.g., variations of AAC). It was developed jointly by the Institute for Infocomm Research (I2R) and Fraunhofer, which commercializes its implementation of a limited subset of the standard under the name of HD-AAC. Standardization of the HD-AAC profile for MPEG-4 Audio is under development (as of September 2009).
Ajit, variously spelled Ajith, Agith, or Ajeet is a common male given name. It is used in its various forms throughout India and also in Nepal, Bangladesh and Sri Lanka. A related name is Ajay.
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. SGDs are important for people who have limited means of interacting verbally, as they allow individuals to become active participants in communication interactions. They are particularly helpful for patients with amyotrophic lateral sclerosis (ALS) but recently have been used for children with predicted speech deficiencies.
Hany Eitouni is an American innovator and entrepreneur, and a cofounder of Berkeley, CA based Seeo, a company commercializing a novel battery technology utilizing solid polymers. In 2010 he was recognized by being listed in the MIT Technology Review's TR35 list.
Chris Rivest is an American entrepreneur and co-founder of SunPrint, a company that develops technology to inexpensively fabricate solar cells using acoustic printing. He is a graduate of the Massachusetts Institute of Technology.
Unified Speech and Audio Coding (USAC) is an audio compression format and codec for both music and speech or any mix of speech and audio using very low bit rates between 12 and 64 kbit/s. It was developed by Moving Picture Experts Group (MPEG) and was published as an international standard ISO/IEC 23003-3 and also as an MPEG-4 Audio Object Type in ISO/IEC 14496-3:2009/Amd 3 in 2012.
Ajit Narayanan is the inventor of FreeSpeech, a picture language with a deep grammatical structure. He's also the inventor of Avaz, India's first Augmentative and Alternative Communication device for children with disabilities. He is a TR35 awardee (2011) and an awardee of the National Award for Empowerment of Persons with Disabilities by the President of India (2010).
Suranga Nanayakkara is a Sri Lankan born computer scientist and inventor. As of 2021, he is the director of Augmented Human Lab and associate professor at the National University of Singapore. Before moving to Auckland in 2018, he was an assistant professor at Singapore University of Technology and Design. He is best known for his work on FingerReader and Haptic Chair. His research interests include Wearable Computing, Assistive Technology, Ubiquitous computing, AI, Collective intelligence and Robotics. MIT Technology Review honored Nanayakkara as one of the Innovators Under 35 for Asia Pacific Region 2014.
Miriah Meyer is an American computer scientist and USTAR professor at the University of Utah. She is noted for her pioneering work in data visualization for research applications. She received an American Association for the Advancement of Science Mass Media Science & Engineering Fellowship in 2006 and served as a reporter for The Chicago Tribune. She was named in MIT Technology Review's TR35 list in 2011 and Fast Company's list of the 100 most creative people in 2012. She was named a 2013 TED Fellow for her work in interactive visualization.
Currently there is no cure for Rett syndrome. Treatment is directed towards improving function and addressing symptoms throughout life. A multi-disciplinary team approach is typically used to treat the person throughout life. This team may include primary care physician, physical therapist, occupational therapist, speech-language pathologist, nutritionist, and support services in academic and occupational settings.
References
- ↑ "TR35: Ajit Narayanan, 29". Technology Review. Massachusetts Institute of Technology. 2011. Archived from the original on 11 January 2012. Retrieved 15 May 2013.
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