Matches in SemOpenAlex for { <https://semopenalex.org/work/W2529616391> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2529616391 abstract "Recent advances in low bit rate speech coding have resulted in a family of speech coders with very good quality and high intelligibility in the past decade. However, these state-of-the-art coders still have problems in modeling and encoding of the transition regions in the speech signal. This problem not only affects the overall quality of these coders but also prohibits further quality improvements with increasing bit rate. One of the reasons for this failure is the stationary assumption used in the estimation of the model parameters in these regions. For these cases, the parameter estimates are often flawed, and the use of these parameters in synthesis may result in audible artifacts. This thesis introduces new methods that can capture the spectral characteristics efficiently from the shortest possible speech signal segments—individual pitch cycles. As a result, it is possible to capture the perceptually important information in both stationary and transition regions. For this purpose, this thesis presents a new class of linear-prediction methods and a residual signal representation method that both use single pitch cycle. A new 2.4 kb/s speech coder is also developed using these proposed methods. Listening tests proved that this new coder performs better than the current state-of-the-art speech coder, especially for female speech. In addition, the quality of the current parametric speech coders is improved by encoding the waveform of the excitation signal in transition regions. For this purpose, a new algorithm that modifies the original signal such that it becomes time-synchronous with the synthetic signal and the waveform of both signals become similar is introduced. This new algorithm allows the use of both fully-parametric representation and waveform encoding of the excitation signal in the same coder to encode different parts of the speech signal. Listening tests have proved that the speech coders using this method have better synthetic speech quality." @default.
- W2529616391 created "2016-10-14" @default.
- W2529616391 creator A5034039714 @default.
- W2529616391 creator A5044310335 @default.
- W2529616391 date "2004-01-01" @default.
- W2529616391 modified "2023-09-22" @default.
- W2529616391 title "Pitch-synchronous processing of speech signal for improving the quality of low bit rate speech coders" @default.
- W2529616391 hasPublicationYear "2004" @default.
- W2529616391 type Work @default.
- W2529616391 sameAs 2529616391 @default.
- W2529616391 citedByCount "8" @default.
- W2529616391 countsByYear W25296163912012 @default.
- W2529616391 crossrefType "dissertation" @default.
- W2529616391 hasAuthorship W2529616391A5034039714 @default.
- W2529616391 hasAuthorship W2529616391A5044310335 @default.
- W2529616391 hasConcept C105795698 @default.
- W2529616391 hasConcept C108699837 @default.
- W2529616391 hasConcept C111472728 @default.
- W2529616391 hasConcept C11413529 @default.
- W2529616391 hasConcept C117251300 @default.
- W2529616391 hasConcept C125411270 @default.
- W2529616391 hasConcept C138885662 @default.
- W2529616391 hasConcept C13895895 @default.
- W2529616391 hasConcept C154945302 @default.
- W2529616391 hasConcept C155512373 @default.
- W2529616391 hasConcept C197477341 @default.
- W2529616391 hasConcept C204201278 @default.
- W2529616391 hasConcept C28490314 @default.
- W2529616391 hasConcept C33923547 @default.
- W2529616391 hasConcept C41008148 @default.
- W2529616391 hasConcept C59883199 @default.
- W2529616391 hasConcept C60048801 @default.
- W2529616391 hasConcept C61328038 @default.
- W2529616391 hasConcept C75217168 @default.
- W2529616391 hasConceptScore W2529616391C105795698 @default.
- W2529616391 hasConceptScore W2529616391C108699837 @default.
- W2529616391 hasConceptScore W2529616391C111472728 @default.
- W2529616391 hasConceptScore W2529616391C11413529 @default.
- W2529616391 hasConceptScore W2529616391C117251300 @default.
- W2529616391 hasConceptScore W2529616391C125411270 @default.
- W2529616391 hasConceptScore W2529616391C138885662 @default.
- W2529616391 hasConceptScore W2529616391C13895895 @default.
- W2529616391 hasConceptScore W2529616391C154945302 @default.
- W2529616391 hasConceptScore W2529616391C155512373 @default.
- W2529616391 hasConceptScore W2529616391C197477341 @default.
- W2529616391 hasConceptScore W2529616391C204201278 @default.
- W2529616391 hasConceptScore W2529616391C28490314 @default.
- W2529616391 hasConceptScore W2529616391C33923547 @default.
- W2529616391 hasConceptScore W2529616391C41008148 @default.
- W2529616391 hasConceptScore W2529616391C59883199 @default.
- W2529616391 hasConceptScore W2529616391C60048801 @default.
- W2529616391 hasConceptScore W2529616391C61328038 @default.
- W2529616391 hasConceptScore W2529616391C75217168 @default.
- W2529616391 hasLocation W25296163911 @default.
- W2529616391 hasOpenAccess W2529616391 @default.
- W2529616391 hasPrimaryLocation W25296163911 @default.
- W2529616391 hasRelatedWork W130455257 @default.
- W2529616391 hasRelatedWork W1489849416 @default.
- W2529616391 hasRelatedWork W1510826117 @default.
- W2529616391 hasRelatedWork W1534400679 @default.
- W2529616391 hasRelatedWork W1583163967 @default.
- W2529616391 hasRelatedWork W1848393657 @default.
- W2529616391 hasRelatedWork W1921927455 @default.
- W2529616391 hasRelatedWork W2020646373 @default.
- W2529616391 hasRelatedWork W2037852874 @default.
- W2529616391 hasRelatedWork W2072123406 @default.
- W2529616391 hasRelatedWork W2102509824 @default.
- W2529616391 hasRelatedWork W2106650471 @default.
- W2529616391 hasRelatedWork W2115133795 @default.
- W2529616391 hasRelatedWork W2119287197 @default.
- W2529616391 hasRelatedWork W2162249687 @default.
- W2529616391 hasRelatedWork W2187980546 @default.
- W2529616391 hasRelatedWork W2231892291 @default.
- W2529616391 hasRelatedWork W2796236831 @default.
- W2529616391 hasRelatedWork W2182229691 @default.
- W2529616391 hasRelatedWork W2266738292 @default.
- W2529616391 isParatext "false" @default.
- W2529616391 isRetracted "false" @default.
- W2529616391 magId "2529616391" @default.
- W2529616391 workType "dissertation" @default.