Editing MPEG-1 (section)

====History/MUSICAM====
MPEG-1 Audio Layer II was derived from the MUSICAM (''Masking pattern adapted Universal Subband Integrated Coding And Multiplexing'') audio codec, developed by [[Centre commun d'études de télévision et télécommunications]] (CCETT), [[Philips]], and [[Institut für Rundfunktechnik]] (IRT/CNET)<ref name=bmrc_mpeg2_faq/><ref name=santa_clara90/><ref name=telos_audio>{{Citation|first=Steve |last=Church |title=Perceptual Coding and MPEG Compression |publisher=NAB Engineering Handbook, [[Telos Systems]] |url=http://www.telos-systems.com/techtalk/mpeg/default.htm |archive-url=https://web.archive.org/web/20010508092243/http://www.telos-systems.com/techtalk/mpeg/default.htm |url-status=dead |archive-date=2001-05-08 |access-date=2008-04-09 }}</ref> as part of the [[EUREKA 147]] pan-European inter-governmental research and development initiative for the development of digital audio broadcasting.

Most key features of MPEG-1 Audio were directly inherited from MUSICAM, including the filter bank, time-domain processing, audio frame sizes, etc. However, improvements were made, and the actual MUSICAM algorithm was not used in the final MPEG-1 Audio Layer II standard. The widespread usage of the term MUSICAM to refer to Layer II is entirely incorrect and discouraged for both technical and legal reasons.<ref name=mpeg_audio_faq>{{Citation |first1=D. |last1=Thom |first2=H. |last2=Purnhagen |title=MPEG Audio FAQ Version 9 |date=October 1998 |publisher=[[International Organization for Standardization|ISO]]/[[International Electrotechnical Commission|IEC]] |url=http://mpeg.chiariglione.org/faq/mp1-aud/mp1-aud.htm |access-date=2016-11-11 |url-status=dead |archive-url=https://web.archive.org/web/20100218081343/http://mpeg.chiariglione.org/faq/mp1-aud/mp1-aud.htm |archive-date=2010-02-18 }}</ref>