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NOISE REMIVING FROM SPEECH SIGNAL USING LINEAR –PHASE TYPE ІІ NOTCH FIR FILTER | ||
| AL-TAQANI | ||
| Article 1, Volume 23, Issue 4, 2010, Pages 102-114 | ||
| Authors | ||
| Mohammed A. Shebeb AL-Abidy; Anwer S. Ahmed AL-Tamimi | ||
| Abstract | ||
| The current research aims to design Linear-Phase based Matlab6.5. Notch FIR filter for noise bands removing from the speech signal. FIR filter cost more than IIF filter, but it has only adjustable zeros and hence it is free of stability problems associated with IIR filter which have adjustable poles as well as zeros. The speech signal used in this project has two frequency noise components, thus the Type II linear phase digital notch filter has been designed because it has two nulls, one occurs at the design frequency and the other is automatic at the Nyquist frequency (fs/2) which is used for the other noise band removing. The design used the least square criteria, because arbitrary linear constrains can easily be included | ||
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