Performance Analysis on the Effect of G.729, Speex and GSM Speech Codec on 802.11g Wireless Local Area Network over VoIP using Packet Jitter
In this paper, three speech codecs; G.729 (8 kbps), Speex (8kbps) and GSM (13kbps) were tested together with several predetermined SNR value ranging from 10dB to 45dB with a sample of 8 second speech. VoIP QoS such as packet jitter is analyzed in order to make a comparison of speech quality of tho...
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Science & Engineering Research Support society
2013
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| Capaian Atas Talian: | http://www.sersc.org/journals/IJCA/vol6_no4/30.pdf http://www.sersc.org/journals/IJCA/vol6_no4/30.pdf http://umpir.ump.edu.my/6371/1/Performance_Analysis_on_the_Effect_of_G.729%2C_Speex_and_GSM_Speech_Codec_on_802.11g_Wireless_Local_Area_Network_over_VoIP_using_Packet_Jitter.pdf http://umpir.ump.edu.my/6371/4/fskkp-2013-syahrizal-Performance%20Analysis%20on%20the%20Effect%20of%20G729.pdf |
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| Ringkasan: | In this paper, three speech codecs; G.729 (8 kbps), Speex (8kbps) and GSM (13kbps) were tested together with several predetermined SNR value ranging from 10dB to 45dB with a
sample of 8 second speech. VoIP QoS such as packet jitter is analyzed in order to make a comparison of speech quality of those three speech codecs in wireless LAN 802.11g
environment. Result shows that at lower SNR, GSM achieve higher packet jitter than that G.729 and Speex. At higher SNR, GSM achieves lower packet jitter as compared than that G.729 and Speex. |
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