| US 7,596,231 B2 | ||
| Reducing noise in an audio signal | ||
| Ramin Samadani, Menlo Park, Calif. (US) | ||
| Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US) | ||
| Filed on May 23, 2005, as Appl. No. 11/135,457. | ||
| Prior Publication US 2006/0265218 A1, Nov. 23, 2006 | ||
| Int. Cl. H04B 15/00 (2006.01) | ||
| U.S. Cl. 381—94.2 [381/94.1; 704/233] | 33 Claims |
| 1. A method of processing an input audio signal having a noise period comprising a targeted noise signal and a noise-free
period free of the targeted noise signal, comprising:
dividing the input audio signal in the noise-free period into spectral time slices each having a respective spectrum;
selecting ones of the spectral time slices of the input audio signal based on the respective spectra of the spectral time
slices; and
composing an output audio signal for the noise period based at least in part on the selected ones of the spectral time slices
of the input audio signal in the noise-free period.
|