Patent ID: 8005023
Filing Date: 2011-08-23
Classification: H04L

Abstract:
1. A process for eliminating a contribution of a local audio signal from a composite audio signal, comprising process actions for: for each of two or more separately located local client computing devices (“client”), capturing a real-time local audio signal; for each client, transmitting each real-time local audio signal to a remote computing device; using the remote computing device to generate a real-time composite audio signal comprising a combination of all of the real-time local audio signals; transmitting the composite audio signal from the remote computing device to each client; for each client, constructing a local version of the composite audio signal based on estimates of quantization noise introduced into the composite audio signal by the remote computing device; wherein the local version of the composite audio signal of each client represents a version of the composite audio signal from which each client's real-time local audio signal has been eliminated; and for each client, providing a real-time playback of the local version of the composite audio signal.