Method and an apparatus for processing an audio signal
US8639368B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Mar 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for processing an audio signal and method thereof are disclosed. The method comprises receiving a downmix signal, object information indicating attribute of the object and including object number information, preset information to render the downmix signal, external preset information being inputted from external, and applied object number information indicating the number of object being applied the external preset information; determining whether the applied object number information is identical to the object number information; and rendering the downmix signal by using the external preset information, if the applied object number information is identical to the object number information, wherein the external preset rendering parameter renders the object being included in the downmix signal and the external preset metadata indicates attribute of the external preset rendering parameter. Accordingly, an audio signal can be efficiently reconstructed by individually selecting and applying external preset information by a data region unit or by selecting and applying the same external preset information to a whole downmix signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.