Title :
Echo and noise reduction methods for multimedia communication systems
Author :
Czyzewski, A. ; Krolikowski, R. ; Zielinski, S.K. ; Kostek, B.
Author_Institution :
Dept. of Sound Eng., Tech. Univ. Gdansk, Poland
Abstract :
New concepts of echo cancellation and reduction of non-stationary noise affecting audio signals transmitted in telecommunication channels are proposed in the paper. In the both cases, some methods originated form artificial intelligence domain, i.e.: genetic algorithms, neural networks, rough sets are applied. Moreover, in the noise reduction method, some features of the human auditory system are exploited. A number of experiments have been carried out, and a brief discussion on some of them is included
Keywords :
artificial intelligence; audio signal processing; echo suppression; genetic algorithms; hearing; multimedia communication; neural nets; set theory; telecommunication channels; artificial intelligence domain; audio signals; echo cancellation; echo reduction methods; experiments; genetic algorithms; human auditory system; listening tests; multimedia communication systems; neural networks; noise reduction methods; nonstationary noise; rough sets; telecommunication channels; Artificial intelligence; Artificial neural networks; Communication channels; Echo cancellers; Genetic algorithms; Humans; Multimedia communication; Noise cancellation; Noise reduction; Rough sets;
Conference_Titel :
Multimedia Signal Processing, 1999 IEEE 3rd Workshop on
Conference_Location :
Copenhagen
Print_ISBN :
0-7803-5610-1
DOI :
10.1109/MMSP.1999.793839
