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1. (WO2018177787) INVERSION OF DYNAMIC RANGE CONTROL

Pub. No.:    WO/2018/177787    International Application No.:    PCT/EP2018/056840
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 20 00:59:59 CET 2018
IPC: H03G 7/00
G10L 19/16
Applicants: DOLBY INTERNATIONAL AB
Inventors: GORLOW, Stanislaw
Title: INVERSION OF DYNAMIC RANGE CONTROL
Abstract:
The present disclosure relates to a method of determining parameters for use by a first dynamic range control, DRC, model. The method comprises feeding a first audio signal to a second DRC model and receiving a second audio signal from the second DRC model, the second audio signal being a dynamic range controlled version of the first audio signal, rule-based selecting one or more pairs of samples of the first audio signal and corresponding samples of the second audio signal, and determining parameters of a first set of parameters among the parameters for use by the first DRC model based on the one or more selected pairs of samples. The present disclosure further relates to a method of reversing DRC of a dynamic range controlled audio signal and to a method of declipping a clipped audio signal that has been clipped by a DRC model. The present disclosure yet further relates to corresponding apparatus and computer-readable media.