Metadata for ducking control
US10992276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2227/009
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.