Abstract: The present invention is suitable for use in call centers and in other environments that include multiple service representatives, in which the voice of one representative may be picked up by the telephone of another representative in the surrounding vicinity. Disclosed herein are various methods of and systems for receiving multiple audio streams from multiple microphones, finding the correlations between the multiple audio streams, and using the correlations to attenuate the ambient noise from each audio stream. Accordingly, a caller in a conversation with a service representative hears the representative's voice with much of the ambient noise removed.

Abstract: This application relates to the way that a noise reduction filter can be applied for improving audio quality during calls. The personal approach that was introduced in the related application entails a significant barrier to wide spread deployment. This application introduces the profile-based approach which overcomes this barrier by enabling a transparent out-of-the-box usage and therefore enabling a wide spread deployment of this technology.

Abstract: A method of transferring a real-time audio signal transmission, including: registering voice patterns (or other characteristics) of on more users to be used to identify the voices of the users, accepting an audio signal as it is created as a sequence of segments, analyzing each segment of the accepted audio signal to determine if it contains voice activity (314), determining a probability level that the voice activity of the segment is of a registered user (320 & 322); and selectively transferring the contents, of a segment responsive to the determined probability level (324).