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https://open.uns.ac.rs/handle/123456789/11022
Nаziv: | DPCM with forward gain-adaptive quantizer and simple switched predictor for high quality speech signals | Аutоri: | Despotović, Vesna Peric Z. Velimirovic L. Delić, Vlado |
Dаtum izdаvаnjа: | 1-нов-2010 | Čаsоpis: | Advances in Electrical and Computer Engineering | Sažetak: | In this article DPCM (Differential Pulse Code Modulation) speech coding scheme with a simple switched first order predictor is presented. Adaptation of the quantizer to the signal variance is performed for each particular frame. Each frame is classified as high or low correlated, based on the value of the correlation coefficient, then the selection of the appropriate predictor coefficient and bitrate is performed. Low correlated frames are encoded with a higher bitrate, while high correlated frames are encoded with a lower bitrate without the objectionable loss in quality. Theoretical model and experimental results are provided for the proposed algorithm. © 2010 AECE. | URI: | https://open.uns.ac.rs/handle/123456789/11022 | ISSN: | 15827445 | DOI: | 10.4316/aece.2010.04015 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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