EUROSPEECH '93
Third European Conference on Speech Communication and Technology

Berlin, Germany
September 22-25, 1993

      

Going Back to the Source: Inverse Filtering of the Speech Signal With ANNs

J. Denzler, Ralf Kompe, Andreas Kießling, Heinrich Niemann, Elmar Nöth

Universitat Erlangen-Nürnberg, Lehrstuhl fur Mustererkennung (Informatik 5), Erlangen, Germany

In this paper we present a new method transforming speech signals to voice source signals (VSS) using artificial neural networks (ANN). We will point out that the ANN mapping of speech signals into source signals is quite accurate, and most of the irregularities in the speech signal will lead to an irregularity in the source signal, produced by the ANN (ANN-VSS). We will show that the mapping of the ANN is robust with respect to untrained speakers, different recording conditions and facilities, and different vocabularies. We will also present preliminary results which show that from the ANN source signal pitch periods can be determined accurately.

Full Paper

Bibliographic reference.  Denzler, J. / Kompe, Ralf / Kießling, Andreas / Niemann, Heinrich / Nöth, Elmar (1993): "Going back to the source: inverse filtering of the speech signal with ANNs", In EUROSPEECH'93, 111-114.