EUROSPEECH '89
First European Conference on Speech Communication and Technology

Paris, France
September 27-29, 1989

Multiband Digital Gain Controller

J. C. Ventura

Laboratoire d'Electromagnetisme et Accustique, Ecole Polytechnique Federate de Lausanne, Lausanne, Switzerland

The restoring of correct loudness functions for hearing impaired requires inputloutput functions which depend on both, amplitude and frequency. The described gain controller does so by splitting the input spectrum in three bands and correcting the loudness functions in each separately. The inputloutput static characteristics are fully programmable and the gain is piloted by an envelope detection based on speech properties.

Full Paper

Bibliographic reference.  Ventura, J. C. (1989): "Multiband digital gain controller", In EUROSPEECH-1989, 1582-1585.