Patent ID: 7035796

Claim:
A System for noise suppression of a speech signal that is intermingled with general noise, said system comprising: a) an Input Unit for receiving (1) the speech signal intermingled with the general noise; (2) at least one audio signal from an audio source; said Input Unit comprising a Sound Processing Unit and a sensor for measuring a rotating rate of a device, in the course of which the Sound Processing Unit generates a second noise signal of the device using the rotating rate value measured by the sensor; b) a Processing Unit comprising (1) a first adaptive filter to produce a first noise signal from the audio signal; (2) a first calculation means to remove the first noise signal from the speech signal, thereby producing a first noise suppressed speech signal from the speech signal; (3) a second adaptive filter to produce a dynamically varying third noise signal from the second noise signal; and (4) a second calculation means to remove the third noise signal from the first noise suppressed speech signal, thereby producing a second noise suppressed speech signal which is a desired speech signal with the first noise signal and the third noise signal suppressed from the speech signal received by said Input Unit.