Audio error detection and processing
US8533551B2 · kind B2 · utility
1Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/005
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of processing a DAB audio stream, the method comprising: receiving a compressed and modulated DAB audio stream comprising a plurality of audio frames encoded with scale factors and a DAB-CRC error detection code for indicating errors in the scale factors; demodulating the DAB stream; and processing the demodulated and still compressed DAB stream responsive to the DAB-CRC of at least one audio frame of the plurality of audio frames; by determining a trend in values of scale factors and repairing or concealing the error in the scale factor responsive to the trend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.