Stereo acoustical echo cancellation is a highly challenging application in the field of acoustical signal processing. Unlike the single-channel case, conflicting requirements on the adaptive filters make this problem ill-posed in its original formulation. In this contribution, it is shown how introducing an estimate of the common acoustical poles of the receiving room can lead the adaptive system to remarkable performance improvements with respect to the classical implementation. Finally, a detailed comparison between the two schemes is presented, based on a simulated acoustical environment and the use of the classical affine projection algorithm.

Stereo acoustical echo cancellation based on common poles / Bunkheila, Gabriele; Scarpiniti, Michele; Parisi, Raffaele; Uncini, Aurelio. - STAMPA. - (2009), pp. 1-6. (Intervento presentato al convegno IEEE International Conference on Digital Signal Processing (DSP 2009) tenutosi a Greece, Santorini nel 2009) [10.1109/ISCAS.2008.4541634].

Stereo acoustical echo cancellation based on common poles

Scarpiniti, Michele;Parisi, Raffaele;Uncini, Aurelio
2009

Abstract

Stereo acoustical echo cancellation is a highly challenging application in the field of acoustical signal processing. Unlike the single-channel case, conflicting requirements on the adaptive filters make this problem ill-posed in its original formulation. In this contribution, it is shown how introducing an estimate of the common acoustical poles of the receiving room can lead the adaptive system to remarkable performance improvements with respect to the classical implementation. Finally, a detailed comparison between the two schemes is presented, based on a simulated acoustical environment and the use of the classical affine projection algorithm.
2009
IEEE International Conference on Digital Signal Processing (DSP 2009)
acoustic signal processing; echo suppression; common poles; ARMA models; adaptive filtering
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Stereo acoustical echo cancellation based on common poles / Bunkheila, Gabriele; Scarpiniti, Michele; Parisi, Raffaele; Uncini, Aurelio. - STAMPA. - (2009), pp. 1-6. (Intervento presentato al convegno IEEE International Conference on Digital Signal Processing (DSP 2009) tenutosi a Greece, Santorini nel 2009) [10.1109/ISCAS.2008.4541634].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/206169
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