An adaptive amplitude distortion effect for audio production is introduced. We consider a versatile model of multiband waveshaping with a limited set of intuitive parameters. We propose a method for adaptive scaling of the characteristic amplitude distortion transfer function. A number of methods to automate other distortion parameters are explored, such as automatic balance between clean and distorted signals for single band and multiband distortion, make-up gain and adaptive anti-aliasing. Automation formulas are generalised for several other common transfer functions. A formal perceptual evaluation of the automation algorithms is conducted, validating the approach and identifying shortcomings and particularities. Finally, we discuss implementational aspects and possible future directions.
De Man, Brecht; Reiss, Joshua D.
Affiliation: Queen Mary University of London, London, UK
AES Conference: 53rd International Conference: Semantic Audio (January 2014)
Paper Number: P2-9
Publication Date: January 27, 2014
Subject: Intelligent Audio Effects
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