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Habibullah Jamal

Work place: Department of Electrical Engineering, University of Engineering and Technology, Taxila, Pakistan

E-mail: habibullah.jamal@uettaxila.edu.pk

Website:

Research Interests: Engineering, Computational Engineering

Biography

Habibullah Jamal, male, has completed his BSc Electrical Engineering from University of Engineering and Technology, Lahore, Pakistan in 1974. After that he has completed MSc and PhD from University of Toronto, Canada in 1979 and 1982 respectively. Dr Jamal has been affiliated with teaching throughout his professional career. Currently he is serving as Professor in Electrical Engineering Department, University of Engineering and Technology Taxila, Pakistan. He has also served as Vice Chancellor for seven years in same University. Dr Jamal is Senior Member/ Fellow of many professional bodies including IEEE. His areas of expertise are Digital Design and Signal Processing. He has also received many awards such as prestigious national level awards. Excellence Award on 8th TERADATA National IT Excellence Awards. In 1991 he has received National Book Council of Pakistan Award. In 2003 he has received National Education Award.

Author Articles
Modified Digital Filtering Algorithm to Enhance Perceptual Evaluation of Speech Quality (PESQ) of VoIP

By Imran Ghous Tahir Muhammad Habibullah Jamal

DOI: https://doi.org/10.5815/ijigsp.2013.04.02, Pub. Date: 8 Apr. 2013

Speech quality of VoIP system is degraded due different network layer problems such as packet loss delay and jitter and external noise. This paper compares the quality of speech signal that is implemented on digital signal processor using G.729 audio data compression algorithm with the ITU-T G.711 PCM coder implemented using modified digital filtering algorithm. PESQ (ITU-T P.862, Perceptual Evaluation of Speech Quality) is used to evaluate the performance. The results indicate that our proposed architecture has better performance.

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