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Convention Paper

Virtual Analog Modeling of Dynamic Range Compression Systems

Authors: Eichas, Felix; Gerat, Etienne; Zölzer, Udo

AES Convention 142 · Paper 9752 · May 2017

Abstract

Dynamic range compression (DRC) systems reduce the dynamic range of an input signal by amplifying low amplitude levels and attenuating higher ones. This work describes a method to digitally model any analog dynamic range compression unit solely with the help of input/output measurements. For this purpose a generic dynamic range compression model is chosen and its structure is adapted to be able to recreate an analog reference device. The linear characteristic as well as the static curve of the reference device are extracted and directly used in the model. Afterwards the parameters of the digital model are adapted with an iterative optimization routine. Finally the output of the digital model and the analog reference system are compared to evaluate the quality of the emulation.

Details

Published in
AES Convention 142
AES Convention
142
Paper number
9752
Publication date
May 6, 2017
Session subject
Audio Processing and Effects
Affiliation
Helmut-Schmidt-University, Hamburg, Germany (See document for exact affiliation information.)
Type
Convention Paper