The Intelligent Music Editor: Towards an Automated Platform for Music Analysis and Editing

摘要

Digital music editing is a standard process in music production for correcting mistakes and enhancing quality, but this is tedious and time-consuming. The Intelligent Music Editor, or IMED, automates routine music editing tasks using advanced techniques for music transcription (especially score alignment), and signal processing. The IMED starts with multiple recorded tracks and a detailed score that specifies all of the notes to be played. A transcription algorithm locates notes in the recording and identifies their pitch. A scheduling model tracks instantaneous tempo of the recorded performance and determines adjusted timings for output tracks. A time-domain pitch modification/time stretching algorithm performs pitch correction and time adjustment. An empirical evaluation on a multi-track recording illustrates the proposed algorithms achieve an onset detection accuracy of 87% and a detailed subjective evaluation shows that the IMED improves pitch and timing accuracy while retaining the expressive nuance of the original recording.