This
URL: http://www.acoustics.hut.fi/~vpv/publications/dafx98.htm
Last modified: November 25, 1998
Author: Vesa Välimäki
1 Sample Rate Systems Inc., Finlaysoninkatu 2, 33210 Tampere, Finland
2 Helsinki University of Technology, Telecommunications Software and Multimedia Laboratory, P.O. Box 5400, FIN-02015 HUT, Espoo, Finland
3 Helsinki University of Technology,
Laboratory of Acoustics and Audio Signal Processing,
P.O. Box 3000, FIN-02015 HUT, Espoo, Finland
In this paper we show several digital signal processing techniques that can be used for non-exponentially decaying artificial reverberation. Traditional recursive filter techniques used for simulating the diffuse part of reverberation produce an exponentially decaying reverberation. We show how traditional reverberation algorithms can be modified and combined to create non-exponentially decaying reverberation. The techniques presented here can be used for interesting musical effects and speech enhancement. As an application example, a real-time system using the Motorola DSP56002 digital signal processor is presented.
Keywords: audio effects, audio signal processing, artificial reverberation, digital filter design
This paper was published in the Proceedings of the 1998 Digital Audio Effects Workshop (DAFX'98), pp. 21-24, Barcelona, Spain, Nov. 19-21, 1998.
This
URL: http://www.acoustics.hut.fi/~vpv/publications/dafx98.htm
Last modified:
November 25, 1998
Author: Vesa Välimäki