Method and system for upmixing audio to generate 3D audio
US9094771B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Oct 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In some embodiments, a method for upmixing input audio comprising N full range channels to generate 3D output audio comprising N+M full range channels, where the N+M full range channels are intended to be rendered by speakers including at least two speakers at different distances from the listener. The N channel input audio is a 2D audio program whose N full range channels are intended for rendering by N speakers nominally equidistant from the listener. The upmixing of the input audio to generate the 3D output audio is typically performed in an automated manner, in response to cues determined in automated fashion from stereoscopic 3D video corresponding to the input audio, or in response to cues determined in automated fashion from the input audio. Other aspects include a system configured to perform, and a computer readable medium which stores code for implementing any embodiment of the inventive method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.