Patent ID: 6757397
Filing Date: 2004-06-29
Classification: H04R

Abstract:
A method for controlling a sensitivity of at least one microphone, comprising the steps of:recording video data of a speech source using a camera, the camera being situated in a predetermined position relative to the at least one microphone; determining a position of the speech source relative to the at least one microphone as a function of at least one of the recorded video data and a focus setting of a lens of the camera; adjusting the sensitivity of the at least one microphone as a function of the determined position, wherein the sensitivity of the at least one microphone is adjusted so that an audio signal emitted by the speech source at a first predetermined level in a direction of the at least one microphone is received by the at least one microphone at a second predetermined level; and setting the second predetermined level as a function of a references position of the speech source relative to the at least one microphone.