Multichannel downmixing device
US8363855B2 · kind B2 · utility
5Cited by
18References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2008 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Oct 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A downmixer provides a listener of an output signal with a substantially accurate rendition of the apparent direction and relative loudness of an input signal. Downmixing certain channels of the input signal independently may substantially preserve the energy and intended direction of the input signal. The downmixer may include a test downmixer that operates over a limited frequency range to more accurately reflect the loudness of the input signal at the output, as perceived by a listener. The downmixer may demand fewer resources, freeing up resources for use in other operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.