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An investigation of the perceptual value of voice frames

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Date
2009
Author
Kajackas, Algimantas
Anskaitis, Aurimas
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Abstract
It is well known, the voice segments and coincident data packets are not equally valued and significant for decoding and comprehension of speech signal. Some lost segments may only slightly worsen audible quality, while others cause strong distortion of the speech signals. Despite this, the feature of different importance of different voice segments in current generation of digital voice transmission systems is not fully used. There is a fundamental problem with discrimination of different importance and value of voice frames. In this paper the concept "of value of voice frame" is introduced, the metric and means for evaluation and measurement of voice frame value are proposed and also results of the measurements of voice frames value are presented.
 
Yra gerai žinoma, kad balso segmentai ir juos atitinkantys paketai turi nevienodą vertę suprantamumui. Kai kurie prarasti paketai gali tik truputį sumažinti girdimą audio kokybę, kai kiti sukelia didelius pokyčius signale. Nepaisant šito, šiuolaikinėse balso kodavimo ir perdavimo sistemose informacija apie skirtingą paketų reikšmingumą nėra naudojama arba išnaudojama nepilnai. Balso signalų diskriminavimas pagal jų reikšmingumą yra fundamentali problema. Šiame darbe įvesta sąvoka „balso paketo vertė“, apibrėžtos metrikos ir priemonės, kurios leidžia matuoti šią balso vertę.
 
Issue date (year)
2009
URI
https://etalpykla.vilniustech.lt/handle/123456789/116580
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  • Straipsniai Web of Science ir/ar Scopus referuojamuose leidiniuose / Articles in Web of Science and/or Scopus indexed sources [7946]

 

 

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