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1. (WO2017035281) AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS

Pub. No.:    WO/2017/035281    International Application No.:    PCT/US2016/048497
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Thu Aug 25 01:59:59 CEST 2016
IPC: H04S 1/00
H04S 3/00
H04S 7/00
Applicants: DOLBY INTERNATIONAL AB
DOLBY LABORATORIES LICENSING CORPORATION
Inventors: BREEBAART, Dirk Jeroen
COOPER, David M.
SAMUELSSON, Leif J.
KOPPENS, Jeroen
WILSON, Rhonda Joy
PURNHAGEN, Heiko
STAHLMANN, Alexander
Title: AUDIO ENCODING AND DECODING USING PRESENTATION TRANSFORM PARAMETERS
Abstract:
A method for encoding an input audio stream including the steps of obtaining a first playback stream presentation of the input audio stream intended for reproduction on a first audio reproduction system, obtaining a second playback stream presentation of the input audio stream intended for reproduction on a second audio reproduction system, determining a set of transform parameters suitable for transforming an intermediate playback stream presentation to an approximation of the second playback stream presentation, wherein the transform parameters are determined by minimization of a measure of a difference between the approximation of the second playback stream presentation and the second playback stream presentation, and encoding the first playback stream presentation and the set of transform parameters for transmission to a decoder.