Speech quality estimation of voice over internet protocol codec using a packet loss impairment model

Min Ki Lee, Hong Goo Kang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This letter proposes a degradation and cognition model to estimate speech quality impairment because of packet loss concealment (PLC) algorithm implemented in the speech CODEC SILK. By considering the fact that the quality degradation caused by packet loss is highly related to the PLC algorithm, the impact of quality degradation on various types of previous and lost packet classes is analyzed. Then, the PLC effects to the proposed class types are measured by the class conditional expectation of the degradation scores. Finally, the cognition module is derived to estimate the total quality degradation in a mean opinion score (MOS) scale. When assessed for correlation with subject test results, the correlation coefficient of the encoder-based class model is 0.93, and that of the decoder-based model is 0.87.

Original languageEnglish
Pages (from-to)EL438-EL444
JournalJournal of the Acoustical Society of America
Volume134
Issue number5
DOIs
Publication statusPublished - 2013 Nov 1

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impairment
degradation
cognition
decoders
estimates
coders
correlation coefficients
modules
Impairment
World Wide Web
Degradation
Concealment
Cognition

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

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Speech quality estimation of voice over internet protocol codec using a packet loss impairment model. / Lee, Min Ki; Kang, Hong Goo.

In: Journal of the Acoustical Society of America, Vol. 134, No. 5, 01.11.2013, p. EL438-EL444.

Research output: Contribution to journalArticle

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