Indian Journal of Science and Technology
DOI: 10.17485/ijst/2015/v8i32/92116
Year: 2015, Volume: 8, Issue: 32, Pages: 1-6
Original Article
Noraziahtulhidayu Kamarudin1*, S. A. R. Al-Haddad1 , Mohammad A. M. Abushariah2 , Shaiful Jahari Hashim1 , Asem Khmag1 and Abd Rauf Bin Hassan3
1 Department of Computer and Communication System Engineering, Faculty of Engineering, University Putra Malaysia, Selangor, Malaysia;
[email protected], [email protected], [email protected], [email protected]
2 Department of Computer Information Systems, King Abdullah II School for Information Technology, The University of Jordan, Jordan; [email protected]
3 Department of Foreign Language, Faculty of Modern Language and Communication, University Putra Malaysia, Selangor, Malaysia; [email protected]
Background/Objectives: Audio recordings or live recitation is easy for noise and reverberation prone and contributes to the classification results. Methods/Statistical Analysis: Therefore, this paper proposed suitable usage of Affine Projection (AP) as adaptive filtering can be used to remove the echo and improve the percentage of results after the classification method takes place. Findings: The room impulse response is added for the signals in the study and AP algorithm is applies to remove the echo existing on each signal. Later, 161 signals then are converted to feature vector by Mel Frequency Cepstral Coefficients (MFCC) and the classification method using Probabilistic Principal Component Analysis (PPCA). This finding is to find the accuracies results based on audio on Quranic accents recitations after acoustic echo cancellation is done on the echoed signal. Applications/Improvements: The percentage of accuracies increases when acoustic echo cancellation is in used from the overall classification processes done to the segmented verses of the Quranic verse for Surah Ad-Duhaa. The implementation of AP as adaptive algorithm able to reduce the echo of Quranic accents and consistent output on the pattern classification and with 20dB of room impulse reverberation is applied and finally it can improve the results of classification to 96%.
Keywords: Acoustic Echo Cancellation, Adaptive Filtering, Affine Projection, Gaussian Mixture Model, Mel Frequency Cepstral Coefficents, Probabilistic Principal Component Analysis
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