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  • 标题:Scalable Hybrid Speech Codec for Voice over Internet Protocol Applications
  • 本地全文:下载
  • 作者:Manas Ray ; Mahesh Chandra ; B.P. Patil
  • 期刊名称:International Journal of Advanced Computer Science and Applications(IJACSA)
  • 印刷版ISSN:2158-107X
  • 电子版ISSN:2156-5570
  • 出版年度:2016
  • 卷号:7
  • 期号:4
  • DOI:10.14569/IJACSA.2016.070424
  • 出版社:Science and Information Society (SAI)
  • 摘要:With the advent of various web-based applications and the fourth generation (4G) access technology, there has been an exponential growth in the demand of multimedia service delivery along with speech signals in a voice over internet protocol (VoIP) setup. Need is felt to fine-tune the conventional speech codecs deployed to cater to the modern environment. This fine-tuning can be achieved by further compressing the speech signal and to utilize the available bandwidth to deliver other services. This paper presents a scalable -hybrid model of speech codec using ITU-T G.729 and db10 wavelet. The codec addresses the problem of compression of speech signal in VoIP setup. The performance comparison of the codec with the standard codec has been performed by statistical analysis of subjective, objective and quantifiable parameters of quality desirable from the codec deployed in VoIP platforms.
  • 关键词:thesai; IJACSA; thesai.org; journal; IJACSA papers; VoIP; Speech Compression; Hybrid Speech Codec; ITU-T G.729 codec; db10 wavelet; Statistical Analysis
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