8th Annual Conference of the International Speech Communication Association

Antwerp, Belgium
August 27-31, 2007

An Approximate Solution for Perceptually Constrained Signal Subspace Speech Enhancement Method

Adam Borowicz, Alexander Petrovsky

Bialystok Technical University, Poland

In this paper we present a low-complexity version of perceptually constrained signal subspace method (PCSS) for speech enhancement. An approximate solution is presented in a new form which provides perceptually optimal residual noise shaping. The proposed approach does not require a whitening transformation and is sub-optimal for coloured noise. A comparative evaluation of selected methods is performed using objective speech quality measures and informal listening tests. The results show that the approximate method outperforms conventional one and gives comparable results as the exact solution in common situations.

Full Paper

Bibliographic reference.  Borowicz, Adam / Petrovsky, Alexander (2007): "An approximate solution for perceptually constrained signal subspace speech enhancement method", In INTERSPEECH-2007, 814-817.