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

Full Text (PDF, 556KB), PP.11-17

Views: 0 Downloads: 0

Author(s)

Imran Ghous 1,* Tahir Muhammad 1 Habibullah Jamal 1

1. Department of Electrical Engineering , University of Engineering and Technology, Taxila, Pakistan

* Corresponding author.

DOI: https://doi.org/10.5815/ijigsp.2013.04.02

Received: 2 Jan. 2013 / Revised: 6 Feb. 2013 / Accepted: 6 Mar. 2013 / Published: 8 Apr. 2013

Index Terms

Noise Reduction, G.711, VoIP Implementation

Abstract

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.

Cite This Paper

Imran Ghous,Tahir Muhammad,Habibullah Jamal,"Modified Digital Filtering Algorithm to Enhance Perceptual Evaluation of Speech Quality (PESQ) of VoIP", IJIGSP, vol.5, no.4, pp.11-17, 2013. DOI: 10.5815/ijigsp.2013.04.02

Reference

[1]D. Collins, Carrier Grade Voice Over IP. San Francisco: McGraw-Hill, 2001.

[2]N. Katugampala and A. Kondoz, "A hybrid coder based on a new phase model for synchronization between harmonic and waveform coded segments," in Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on, 2001, pp. 685-688 vol.2. 

[3]G. H. Hakonsen and T. A. Ramstad, "On Losses of Performance in a Joint Source Channel Coder," in Signal Processing Symposium, 2006. NORSIG 2006. Proceedings of the 7th Nordic, 2006, pp. 278-281. 

[4]J. C. Bellamy. (2000). Digital Telephony. 

[5]T. Painter and A. Spanias, "Perceptual coding of digital audio," Proceedings of the IEEE, vol. 88, pp. 451-515, 2000.

[6]S. M. Tsai and J. F. Yang, "Efficient algebraic code-excited linear predictive codebook search," Vision, Image and Signal Processing, IEE Proceedings -, vol. 153, pp. 761-768, 2006.

[7]C. W. Therdpong Daengsi, Apiruck Preechayasomboon, Saowanit Sukparungsee, "Speech Quality Assessment of VoIP: G.711 VS G.722 Based on Interview Tests with Thai Users," MECS, vol. 4, pp. 19-25, March 2012.

[8]T. Daengsi, et al., "A study of VoIP quality evaluation: User perception of voice quality from G.729, G.711 and G.722," in Consumer Communications and Networking Conference (CCNC), 2012 IEEE, 2012, pp. 342-345. 

[9]M. Konate and P. Kabal, "Quantization noise estimation for log-PCM," in Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on, 2011, pp. 001337-001341.

[10]S. Paulsen, et al., "Influence of the jitter buffer on the quality of service VoIP," in Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2011 3rd International Congress on, 2011, pp. 1-5. 

[11]D. a. M. Minolli, E, Delivering Voice Over IP Networks. New York: John Wiley & Sons, 1998.

[12]R. J. B. a. R. Reynolds, A. W, "Quality VoIP - an engineering challenge " BT Technology Journal, vol. Vol.19 No.2, April 2001.

[13]H. P. Singh, et al., "Processing of VoIP Signal Using TMS320C6713 in Digital Domain," in Computer Engineering and Applications (ICCEA), 2010 Second International Conference on, 2010, pp. 606-610.

[14]http://www.voiptroubleshooter.com/open_speech/. Open Speech Repository.

[15]http://www.mathworks.com/help/dsp/ref/g711codec.html. MathWorks.

[16]ITU-T Recommendation P.862," Perceptual evaluation of speech quality (PESQ), an objective method for end to end speech quality assessment of narrow band telephone networks and speech codecs, " Feb. 2001.