Editing MPEG-1 (section)

====History/ASPEC====
[[File:2016-07 ASPEC 91 Bonn.jpg|thumb|ASPEC 91 in the [[Deutsches Museum Bonn]], with encoder (below) and decoder]]
MPEG-1 Audio Layer III was derived from the ''Adaptive Spectral Perceptual Entropy Coding'' (ASPEC) codec developed by Fraunhofer as part of the [[EUREKA 147]] pan-European inter-governmental research and development initiative for the development of digital audio broadcasting. ASPEC was adapted to fit in with the Layer II model (frame size, filter bank, FFT, etc.), to become Layer III.<ref name=santa_clara90/>

ASPEC was itself based on ''Multiple adaptive Spectral audio Coding'' (MSC) by [[E. F. Schroeder]],<!--at ???--> ''Optimum Coding in the Frequency domain'' (OCF) the [[doctoral thesis]] by [[Karlheinz Brandenburg]] at the [[University of Erlangen-Nuremberg]], ''Perceptual Transform Coding'' (PXFM) by [[J. D. Johnston]] at [[AT&T Corporation|AT&T]] [[Bell Labs]], and ''Transform coding of audio signals'' by [[Y. Mahieux]] and [[J. Petit]] at [[Institut für Rundfunktechnik]] (IRT/CNET).<ref name=perceptual_coding>{{Citation |first1=Ted |last1=Painter |first2=Andreas |last2=Spanias |title=Perceptual Coding of Digital Audio (Proceedings of the IEEE, VOL. 88, NO. 4) |date=April 2000 |publisher=[[Proceedings of the IEEE]] |url=http://www.ee.columbia.edu/~marios/courses/e6820y02/project/papers/Perceptual%20coding%20of%20digital%20audio%20.pdf |access-date=2016-11-11 |url-status=dead |archive-url=https://web.archive.org/web/20060916012236/http://www.ee.columbia.edu/~marios/courses/e6820y02/project/papers/Perceptual%20coding%20of%20digital%20audio%20.pdf |archive-date=September 16, 2006}}</ref>