This paper illustrates the demonstration of sonic emotion 3D sound technology for compact loudspeaker arrays. The technology combines stereo/5.1 spatial analysis techniques with advanced sound field control techniques based on Wave Field Synthesis for optimum sound rendering of stereo/5.1 content within an extended listening area. sonic emotion offers a complete solution in the form of a chip t...

Teleconferencing systems employ acoustic echo cancelers (AECs) to reduce echos that result from coupling between the loudspeaker and microphone. To enhance the sound realism, two-channel audio is necessary. However, in this case (stereophonic sound) the acoustic echo cancellation problem is more di cult to solve because of the necessity to uniquely identify two acoustic paths. In this paper, we...

The use of a tap-selection approach for stereophonic acoustic echo cancellation in frequency domain adaptive algorithms is investigated. We first provide an analysis showing how the exclusive-maximum (XM) tap-selection scheme can improve the conditioning of the covariance matrix, hence improving convergence performance. We then show how the XM tap-selection can be extended to the frequency doma...

Adaptive Acoustic Echo Cancellation in stereophonic teleconferencing is a very demanding application. Characteristics are : very large number of coe cients, non-stationary input (speech), (slowly) time-varying systems to be identied, plus the speci c property that both stereo signals are intrinsically very correlated. Basic versions of stochastic gradient algorithms have di culties to meet thes...

An algorithm is introduced that performs stereophonic acoustic echo cancellation (SAEC) for systems using pairwise panning of a single monophonic source to provide the effect of spatialisation. The technique exploits the inherent high correlation between the loudspeaker signals, unlike other general SAEC techniques, which try to utilise any small uncorrelated features in the signals. The algori...