Audio conferencing method using scalable architecture

Details Audio conferencing method using scalable architecture Audio conferencing method using scalable architecture

2006-05-30

2006-05-30

Deane, Jr., William J. (Department: 2642)

Telephonic communications

Special services

C379S202010

Reexamination Certificate

active

07054424

ABSTRACT:
An audio conferencing apparatus and method. The apparatus includes a data bus, such as a TDM bus, a controller, and an interface circuit that receives audio signals from a plurality of conference participants and provides digitized audio signals in assigned time slots over the TDM bus. The audio conferencing platform also includes a plurality of digital signal processors (DSPs) adapted to communicate on the TDM bus with the interface circuit. At least one of the DSPs sums a plurality of the digitized audio signals associated with conference participants who are speaking, to provide a summed conference signal. This DSP provides the summed conference signal to at least one of the other DSPs, which removes the digitized audio signal associated with a speaker whose voice is included in the summed conference signal, to provide a customized conference audio signal to each of the speakers.

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