Audio decoder with dynamic adjustment of signal modification
US7328151B2 · kind B2 · utility
17Cited by
10References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2002 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Mar 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0264
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and devices for dynamically adjusting a multi-band signal-modification profile based on a psychoacoustic model are disclosed. In one arrangement, the encoding parameter side information is used to estimate encoding noise of an encoded signal. The signal spectrum of the signal is estimated. Adjustments to the multi-band signal-modification profile are determined using the estimated noise and signal spectrum and a psychoacoustic profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.