US 2017/0318408 A1 · APPARATUS AND METHOD FOR GENERATING A PLURALITY OF AUDIO CHANNELS

Abstract

An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.

Claims17

Dependent claims

An apparatus for generating a plurality of audio channels for a first speaker setup, comprising:

an imaginary speaker determiner for determining a position of an imaginary speaker not comprised in the first speaker setup to acquire a second speaker setup comprising the imaginary speaker;
an energy distribution calculator for calculating an energy distribution from the imaginary speaker to the other speakers in the second speaker setup;
a processor repeating the energy distribution to acquire a downmix information for a downmix from the second speaker setup to the first speaker setup;
and
a renderer for generating the plurality of audio channels using the downmix information.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/650,146Filed 14 Jul 2017

Priority

EP 141503627 Jan 2014

Published

2 Nov 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04S 7/308
Control circuits for electronic adaptation of the sound field: electronic adaptation dependent on speaker or headphone connection
G10L 19/008
Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals,…:…
G10L 19/20
Vocoders using multiple modes: using sound class specific coding, hybrid encoders or object based coding
H04S 3/02
Systems employing more than two channels, e.g. quadraphonic: of the matrix type, i.e. in which input signals are combined algebraically, e.g.…

Apparatus and method for generating a plurality of audio channels

Life of this patent

Apparatus and method for generating a plurality of audio channels

Life of this patent

Abstract

Claims17