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.
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