Multi-microphone Noise Reduction Using Gsvd-based Optimal Filtering with Anc Postprocessing Stage

MULTI - MICROPHONE NOISE REDUCTION USING GSVD - BASEDOPTIMAL FILTERING WITH ANC POSTPROCESSING STAGESimon

Combined acoustic echo and noise reduction using GSVD-based optimal filtering

This paper describes two schemes for combining acoustic echo and noise reduction using a GSVD-based optimal filtering technique. The GSVD-based filtering technique is a signal enhancement technique which has recently been proposed for noise reduction in multi-microphone speech signals. In many speech communication applications however also a far-end echo source is present. Therefore a combined ...

Noise Reduction in Multi-microphone Speech Signals Using Recursive and Approximate Gsvd-based Optimal Filtering

This paper describes some techniques for reducing the computational complexity of a GSVD-based optimal filtering technique for noise reduction in multi-microphone speech signals. It has been shown that this GSVD-based optimal filtering technique has a better noise reduction performance than standard beamforming techniques and is more robust to deviations from the nominal situation [1] [2]. Howe...

Robustness Analysis of Gsvd Based Optimal Filtering and Generalized Sidelobe Canceller for Hearing Aid Applications

Multi-microphone noise reduction techniques for hearing aid applications go together with the use of small-sized arrays. Considerable noise reduction can be achieved with such arrays, but at the expense of an increased sensitivity to model errors or a priori assumptions. We evaluate the robustness of the Generalized Sidelobe Canceller (GSC) and a Generalized Singular Value Decomposition (GSVD) ...

GSVD-based optimal filtering for single and multimicrophone speech enhancement

In this paper, a generalized singular value decomposition (GSVD) based algorithm is proposed for enhancing multimicrophone speech signals degraded by additive colored noise. This GSVD-based multimicrophone algorithm can be considered to be an extension of the single-microphone signal subspace algorithms for enhancing noisy speech signals and amounts to a specific optimal filtering problem when ...