| Patent Number |
Title Of Patent |
Date Issued |
| 7171246 |
Noise suppression |
January 30, 2007 |
| A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method comprises the steps of: estimating and up-dating a spectrum of the background noise (33 |
| 6810273 |
Noise suppression |
October 26, 2004 |
| A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method comprises the steps of: estimating and up-dating a spectrum of the background noise (332, |
| 6587817 |
Method and apparatus for determining speech coding parameters |
July 1, 2003 |
| A method which comprises forming a first noise reduction frame (18) containing speech samples; which is windowed by a first window function. For the windowed frame, noise reduction is performed for producing a second noise reduction frame (19; 45). A speech coding frame (44) to be fo |
| 5963901 |
Method and device for voice activity detection and a communication device |
October 5, 1999 |
| The invention concerns a voice activity detection device in which an input speech signal (x(n)) is divided in subsignals (S(s)) representing specific frequency bands and noise (N(s)) is estimated in the subsignals. On basis of the estimated noise in the subsignals, subdecision signals (S |
| 5839101 |
Noise suppressor and method for suppressing background noise in noisy speech, and a mobile stati |
November 17, 1998 |
| The invention relates to a method of noise suppression, a mobile station and a noise suppressor for suppressing noise in a speech signal. The suppressor comprises means (20, 50) for dividing the speech signal into a first amount of subsignals (X, P), which subsignals represent certain |
