- Patent Title: Apparatus, method and computer program for encoding, decoding, scene processing and other procedures related to DirAC based spatial audio coding using low-order, mid-order and high-order components generators
-
Application No.: US17332358Application Date: 2021-05-27
-
Publication No.: US11937075B2Publication Date: 2024-03-19
- Inventor: Guillaume Fuchs , Oliver Thiergart , Srikanth Korse , Stefan Döhla , Markus Multrus , Fabian Küch , Alexandre Bouthéon , Andrea Eichenseer , Stefan Bayer
- Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND FORSCHUNG E.V
- Current Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND FORSCHUNG E.V
- Current Assignee Address: DE Munich
- Agency: McClure, Qualey & Rodack, LLP
- Priority: EP 211064 2018.12.07
- Main IPC: H04S7/00
- IPC: H04S7/00 ; G10L19/02
Abstract:
An apparatus for generating a sound field description using an input signal having a mono-signal or a multi-channel signal comprises: an input signal analyzer for analyzing the input signal to derive direction data and diffuseness data; a low-order components generator for generating a low-order sound field description from the input signal up to a predetermined order and mode; a mid-order components generator for generating a mid-order sound field description above the predetermined order or at the predetermined order and above the predetermined mode and below or at a first truncation order using a synthesis of at least one direct portion and of at least one diffuse portion using the direction data and the diffuseness data; and a high-order components generator for generating a high-order sound field description having a component above the first truncation order using a synthesis of at least one direct portion.
Public/Granted literature
Information query
