AN AUTONOMOUS METHOD FOR MULTI-TRACK DYNAMIC RANGE COMPRESSION TEMPLATES FOR DAFX-08, FINLAND, FRANCE

Dynamic range compression is a nonlinear audio effect that reduces the dynamic range of a signal and is frequently used as part of the process of mixing multi-track audio recordings. A system for automatically setting the parameters of multiple dynamic range compressors (one acting on each track of the multi-track mix) is described. The perceptual signal features loudness and loudness range are used to cross-adaptively control each compressor. The system is fully autonomous and includes six different modes of operation. These were compared and evaluated against a mix in which compressor settings were chosen by an expert audio mix engineer. Clear preferences were established for the different modes of operation, and it was found that the autonomous system was capable of producing audio mixes of approximately the same subjective quality as those produced by the expert engineer.

[1]  Algorithms to measure audio programme loudness and true-peak audio level , 2011 .

[2]  Joshua D. Reiss,et al.  A Real-Time Semiautonomous Audio Panning System for Music Mixing , 2010, EURASIP J. Adv. Signal Process..

[3]  Joshua D. Reiss,et al.  Parameter Automation in a Dynamic Range Compressor , 2013 .

[4]  RECOMMENDATION ITU-R BS.1534-1 - Method for the subjective assessment of intermediate quality level of coding systems , 2003 .

[5]  Roey Izhaki,et al.  Mixing Audio: Concepts, Practices and Tools , 2008 .

[6]  Ruohua Zhou,et al.  Music Onset Detection , 2011 .

[7]  Mark B. Sandler,et al.  A tutorial on onset detection in music signals , 2005, IEEE Transactions on Speech and Audio Processing.

[8]  Michael M. Goodwin,et al.  Enhancement of Audio Signals Using Transient Detection and Modification , 2004 .

[9]  Joshua D. Reiss,et al.  Automatic Equalization of Multichannel Audio Using Cross-Adaptive Methods , 2009 .

[10]  Mike Senior,et al.  Mixing Secrets for the Small Studio , 2011 .

[11]  Joshua D. Reiss,et al.  Digital Dynamic Range Compressor Design—A Tutorial and Analysis , 2012 .

[12]  Joshua D. Reiss,et al.  Automatic gain and fader control for live mixing , 2009, 2009 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics.

[13]  Michael Lester,et al.  Measuring Dynamics: Comparing and Contrasting Algorithms for the Computation of Dynamic Range , 2010 .

[14]  Bob Katz,et al.  Mastering Audio: The Art and the Science , 2002 .

[15]  Udo Zölzer,et al.  Adaptive digital audio effects (a-DAFx): a new class of sound transformations , 2006, IEEE Transactions on Audio, Speech, and Language Processing.