Proposition of minimum bands multirate noise reduction system which exploits properties of the human auditory system and all-pass transformed filter bank
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چکیده
This paper introduce the new approach to noise reduction in order to improve the speech intelligibility. The system is proposed with minimum band requirement to approximate psychoacoustic Bark scale and nonuniform filter bank constructed with the use of first order all-pass transformation. Proposed psychoacoustic weighting exploits the well known audible noise reduction rule in case of the 16-bit signal and sampling rate of 8 kHz.
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تاریخ انتشار 2002