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Stereo Acoustic Echo Cancellation for Telepresence Systems

A Telepresence system provides its users the sense that they are virtually present in another physical location. Typically, this means providing a high quality audio and video communication path. Simply adding video communication to audio teleconferencing is not enough. When users see each other, they quickly realize the poor audio performance, such as half duplex behavior, that is commonly implemented. In order to make affordable Telepresence systems for everyone, the challenge is to design high performance audio communication systems that are computationally efficient.

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