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A New Noise Suppression System Using Two Stage Wiener Filter(PDF)


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A New Noise Suppression System Using Two Stage Wiener Filter
Zhu Qi
Department of Radio Engineering, Nanjing University of Posts & Telecommunications, Nanjing 210003
speech sounds signal pr ocessing noise suppression sig nal noise ratio filter
T he speech receiv ed under many circumstances is o ften disturbed by vario us noises. T his ser io usly decr eases the intellig ibility and ar ticulat ion o f the received speech. Therefo re, it is essent ial to use some method to ex t ract the clean speech. In this paper , w e pr opo se a new alg orithm w ith tw o stag e Wiener f ilter to suppr ess noise, both its SNR and the intelligibility of the f il tered speech are bet ter than those of Zelinski’s method.


1 Simmer K U , Wasiljeff A. Analysis and compariso n of sy st ems for adaptive ar r ay pr ocessing o f speech signal in a no ise envir onment. 11th GRETSI Sympo sium of Imag e and Signal Pr ocessing . Juan-Les-Pins: C Femy , 1991. 529~532
2 Widrow B, Duv all K M, Go och R P, New man W C. Signal cancellation phenomena in adapt ive antennas: cause and cures. IEEE T rans on Antennas Pro po g . 1982, AP-30: 469~473
3 Fro st O L. An alg or ithm fo r linearly-constra ined adapt ive ar r ay pro ceeding . Pr o ceedings o f IEEE, 1972, 60( 8) : 926~935
4 Steig litz K. On the simultaneo us estima tio n o f po les and zero s in speech a nalysis. IEEE Tr ans o n ASSP, 1977, 25: 229~234
5 Zelinski R. A micr ophone arr ay with adaptive post-filt ering for noise r eductio n in r ever berat e ro oms. ICSSPp88. New Yo rk : K steiglit z, 1988. 2 578~2 581
6 Simmer K U, Wa siljeff A. Adaptive micro pho ne ar ray s fo r noise suppr ession in the frequency domain. Seco nd Co st 229 Wo rkshop o n Adaptive Alg or ithms in Communicatio ns. Fr ance: Bo rdeaux-Technopolis, 1992. 100~104
7 Griffiths L J, Jim C W. An alter nativ e appro ach t o linearly constr ained adaptiv e beamfo rming . IEEE T ra ns o n Antennas Pro pagat , 1982, 30( 1) : 27~34


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