At least one of intelligibility or loudness of an audio program
US9344825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Sep 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for improving intelligibility or loudness of an audio program includes an encoder that receives signals of the audio program including at least one of left/front and right/front or left and right signals that include some anchor components of the audio program and to downmix the received signals to obtain left downmix and right downmix signals. The system includes a decoder that upmixes the left downmix and right downmix signals to obtain a center upmix signal that includes a majority of the anchor components including at least some anchor components that were included in the left/front and right/front signals or the left and right signals. The system also includes a system output that provides the center upmix signal to process at least one of the signals of the audio program based on the center upmix signal to improve intelligibility or loudness of the audio program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.