Abstract: In one implementation, audio signals from at least one audio input device are received. In addition, a first weight for the at least one audio input device is applied to the audio signals to generate a plurality of weighted left channel audio signals and a second weight for the at least one audio input device is applied to the audio signals to generate a plurality of weighted right channel audio signals. Moreover, stereo audio signals containing the weighted left channel audio signals and the weighted right channel audio signals are generated.

Abstract: A system includes microphone devices, echo cancellation mechanism, and speaker devices. Each echo cancellation mechanism corresponds to one of the microphone devices. Each speaker device corresponds to a sound source signal. Each sound source signal is spatially distributed to all the speaker devices, and each echo cancellation mechanism receives as a reference signal a combination of all the sound source signals.

Abstract: The present invention is embodied in a computer-readable program in a computer-readable medium for upgrading a video conference system, the computer-readable program comprising acoustic echo canceling control software having an application programming interface. The acoustic echo canceling control software is implemented on a computer system that operates the video conference system and macros are configured to couple the acoustic echo canceling control software to hardware components of the video conference system and to interface with the application programming interface. The macros are user configurable for providing real time adjustments of echo canceling runtime parameters of the hardware components during a video conference session.

Abstract: The present invention is embodied in an audio conferencing system for a computer system, including a database storing a plurality of mode definitions each indicative of a video conference session configuration (402) and an acoustic canceling subsystem operating on the computer system having an initial configuration running during a video conferencing session (406). An acoustic change to a new acoustic configuration of the video conferencing system is detected during the session (408), a mode definition is selected from the database based upon the new acoustic configuration and the echo canceling system is dynamically reconfigured based upon the new acoustic configuration during the session (410).

Abstract: The present invention is embodied in a computer-readable program in a computer-readable medium for upgrading a video conference system, the computer-readable program comprising acoustic echo canceling control software having an application programming interface. The acoustic echo canceling control software is implemented on a computer system that operates the video conference system and macros are configured to couple the acoustic echo canceling control software to hardware components of the video conference system and to interface with the application programming interface. The macros are user configurable for providing real time adjustments of echo canceling runtime parameters of the hardware components during a video conference session.

Abstract: A system includes microphone devices, echo cancellation mechanism, and speaker devices. Each echo cancellation mechanism corresponds to one of the microphone devices. Each speaker device corresponds to a sound source signal. Each sound source signal is spatially distributed to all the speaker devices, and each echo cancellation mechanism receives as a reference signal a combination of all the sound source signals.