Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Very Low Bit-Rate Speech Coding Based on Neural Networks
Jochman, Stanislav ; Malenovský, Vladimír (oponent) ; Černocký, Jan (vedoucí práce)
During this work, we focused on replicating and enhancing results by using the neural network LPCNet. We compared audio quality from the pre-trained model and our models trained on smaller datasets, thus reducing training time and improving audio quality. We determined that using a language-specific dataset can produce greater results in that specific language than a big general model. We measured the quality of speech of the pre-trained model and our models using WARPQ ranking score 5.2.4. We also examined possibilities of improving audio quality by filtering output audio using output post-filters and formant-enhancing filters. Our results show measurable improvement in audio quality using the suggested methods.
Very Low Bit-Rate Speech Coding Based on Neural Networks
Jochman, Stanislav ; Malenovský, Vladimír (oponent) ; Černocký, Jan (vedoucí práce)
During this work, we focused on replicating and enhancing results by using the neural network LPCNet. We compared audio quality from the pre-trained model and our models trained on smaller datasets, thus reducing training time and improving audio quality. We determined that using a language-specific dataset can produce greater results in that specific language than a big general model. We measured the quality of speech of the pre-trained model and our models using WARPQ ranking score 5.2.4. We also examined possibilities of improving audio quality by filtering output audio using output post-filters and formant-enhancing filters. Our results show measurable improvement in audio quality using the suggested methods.

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