Spatial audio encoding and reproduction
US8908874B2 · kind B2 · utility
33Cited by
14References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Aug 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/03
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method and apparatus processes multi-channel audio by encoding, transmitting or recording “dry” audio tracks or “stems” in synchronous relationship with time-variable metadata controlled by a content producer and representing a desired degree and quality of diffusion. Audio tracks are compressed and transmitted in connection with synchronized metadata representing diffusion and preferably also mix and delay parameters. The separation of audio stems from diffusion metadata facilitates the customization of playback at the receiver, taking into account the characteristics of local playback environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.