Please use this identifier to cite or link to this item:
https://open.uns.ac.rs/handle/123456789/14483
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Despotović, Vesna | en |
dc.contributor.author | Peric Z. | en |
dc.contributor.author | Velimirovic L. | en |
dc.contributor.author | Delić, Vlado | en |
dc.date.accessioned | 2020-03-03T14:56:19Z | - |
dc.date.available | 2020-03-03T14:56:19Z | - |
dc.date.issued | 2011-10-01 | en |
dc.identifier.issn | 17519675 | en |
dc.identifier.uri | https://open.uns.ac.rs/handle/123456789/14483 | - |
dc.description.abstract | This study describes a novel adaptive quantiser based on the optimal companding technique. Adaptation is achieved by adjusting the input of the fixed or non-adaptive quantiser according to the estimated and quantised gain on each particular frame. In such a way better quantiser adaptation to the varying input statistics is provided. Selection of the appropriate bit rate is performed depending on the value of the correlation coefficient ρ on each frame. The decision thresholds for ρ are determined under the condition that the signal to quantisation noise ratio does not drop under 34.3 dB, satisfying the G.712 standard quality of speech, while decreasing the bit rate. The information about the gain and about the chosen bit rate is then transferred as a side information to a decoder. Although this slightly increases the side information, the overall savings in the bit rate have shown to be substantial. Theoretical and experimental results are provided, which point out the benefits that can be achieved using the proposed algorithm. © 2011 The Institution of Engineering and Technology. | en |
dc.relation.ispartof | IET Signal Processing | en |
dc.title | Switched adaptive quantiser for speech compression based on optimal companding and correlation | en |
dc.type | Journal/Magazine Article | en |
dc.identifier.doi | 10.1049/iet-spr.2010.0308 | en |
dc.identifier.scopus | 2-s2.0-80455129282 | en |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/80455129282 | en |
dc.relation.lastpage | 707 | en |
dc.relation.firstpage | 701 | en |
dc.relation.issue | 7 | en |
dc.relation.volume | 5 | en |
item.fulltext | No Fulltext | - |
item.grantfulltext | none | - |
crisitem.author.dept | Prirodno-matematički fakultet, Departman za hemiju, biohemiju i zaštitu životne sredine | - |
crisitem.author.dept | Fakultet tehničkih nauka, Departman za energetiku, elektroniku i telekomunikacije | - |
crisitem.author.orcid | 0000-0003-4113-6724 | - |
crisitem.author.parentorg | Prirodno-matematički fakultet | - |
crisitem.author.parentorg | Fakultet tehničkih nauka | - |
Appears in Collections: | FTN Publikacije/Publications |
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