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.

Authors: Eichas, Felix; Gerat, Etienne; Zölzer, Udo
Affiliation: Helmut-Schmidt-University, Hamburg, Germany
AES Convention: 142 (May 2017) Paper Number: 9752
Publication Date: May 11, 2017 Import into BibTeX
Subject: Audio Processing and Effects
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=18628

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:   /conv/142/9752.pdf

Start a discussion about this paper!