Audio encoding apparatus and method, audio decoding apparatus and method, and audio reproducing apparatus
US10575111B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Mar 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.