DWT-DCT-Based Data Hiding for Speech Bandwidth Extension

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dc.contributor.authorKoduri, Sunil Kumar
dc.contributor.authorKumar, T. Kishore
dc.coverage.issue2cs
dc.coverage.volume30cs
dc.date.accessioned2021-07-12T08:14:54Z
dc.date.available2021-07-12T08:14:54Z
dc.date.issued2021-06cs
dc.description.abstractThe limited narrowband frequency range, about 300-3400Hz, used in telephone network channels results in less intelligible and poor-quality telephony speech. To address this drawback, a novel robust speech bandwidth extension using Discrete Wavelet Transform- Discrete Cosine Transform Based Data Hiding (DWTDCTBDH) is proposed. In this technique, the missing speech information is embedded in the narrowband speech signal. The embedded missing speech information is recovered steadily at the receiver end to generate a wideband speech of considerably better quality. The robustness of the proposed method to quantization and channel noises is confirmed by the mean square error test. The enhancement in the quality of reconstructed wideband speech of the proposed method over conventional methods is reasserted by subjective listening and objective tests.en
dc.formattextcs
dc.format.extent435-442cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2021 vol. 30, č. 2, s. 435-442. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2021.0435en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/200459
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2021/21_02_0435_0442.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectTelephone networksen
dc.subjectspeech bandwidth extensionen
dc.subjecttelephony speech enhancementen
dc.subjectspeech qualityen
dc.subjectDWT-DCT-based data hiding.en
dc.titleDWT-DCT-Based Data Hiding for Speech Bandwidth Extensionen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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