Generalized sidelobe canceller based combined acoustic feedback- and noise cancellation

Authors:
Geert Rombouts;Ann Spriet;Marc Moonen
Affiliations:
Katholieke Universiteit Leuven/ESAT-SCD, Kasteelpark Arenberg 10, 3001 Heverlee, Belgium;Katholieke Universiteit Leuven/ESAT-SCD, Kasteelpark Arenberg 10, 3001 Heverlee, Belgium;Katholieke Universiteit Leuven/ESAT-SCD, Kasteelpark Arenberg 10, 3001 Heverlee, Belgium
Venue:
Signal Processing
Year:
2008

Citing 2
Cited 1

Adaptive feedback cancellation in hearing aids with linear prediction of the desired signal

IEEE Transactions on Signal Processing - Part I
Acoustic feedback cancellation for long acoustic paths using a nonstationary source model

IEEE Transactions on Signal Processing

Design of microphone arrays for hearing aids optimized to unknown subjects

Signal Processing

Quantified Score

Hi-index	0.08

Visualization

Abstract

We propose a combination of the well-known generalized sidelobe canceller (GSC) or Griffiths-Jim beamformer, and the so-called PEM-AFROW algorithm for joint estimation under closed loop conditions of a room impulse response and a desired speech signal model, resulting in a system for multimicrophone combined acoustic feedback and noise cancellation. For specific applications (e.g. public address systems), the computational complexity may be reduced dramatically compared to state-of-the-art proactive acoustic feedback cancellers, while feedback cancellation performance is only marginally degraded.