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Adaptive prediction and bit-assignment in subband coding of speech
dc.contributor.author | Mariño Acebal, José Bernardo |
dc.contributor.author | Martí Ros, Jaume |
dc.date.accessioned | 2016-04-14T13:13:10Z |
dc.date.available | 2016-04-14T13:13:10Z |
dc.date.issued | 1985 |
dc.identifier.citation | Mariño, J.B., Martí, J. Adaptive prediction and bit-assignment in subband coding of speech. A: Mediterranean Electrotechnical Conference. "MELECON 1985: Proceedings of MELECON '85: Mediterranean Electrotechnical Conference: Madrid, Spain: October 8-10, 1985". Madrid: 1985, p. 175-178. |
dc.identifier.isbn | 0444878513 |
dc.identifier.uri | http://hdl.handle.net/2117/85678 |
dc.description.abstract | The combination of time-domain harmonic scaling (TDHS) and sub-band coding (SBC) provides an encoding approach which allows 9.6 Kb/s speech encoding with good communication quality. Starting from this structure, this paper focuses the improvement of earlier designs. It is shown that adaptive prediction and bit-assigment enhances the subband signal coding and, hence, the performance of the overall system. The prediction is realized by an adaptive lattice, the algorithm being GAL2. The dynamic bit allocation takes place from the step-sizes of the backward adaptive quantizers (Jayant) in each sub-band. Improvements as high as 5 dB can be achieved for the average segmented signal to noise ratio. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la parla i del senyal acústic |
dc.subject.lcsh | Speech processing systems |
dc.subject.lcsh | Signal processing |
dc.title | Adaptive prediction and bit-assignment in subband coding of speech |
dc.type | Conference report |
dc.subject.lemac | Processament de la parla |
dc.subject.lemac | Tractament del senyal |
dc.contributor.group | Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 17697657 |
dc.description.version | Postprint (published version) |
local.citation.author | Mariño, J.B.; Martí, J. |
local.citation.contributor | Mediterranean Electrotechnical Conference |
local.citation.pubplace | Madrid |
local.citation.publicationName | MELECON 1985: Proceedings of MELECON '85: Mediterranean Electrotechnical Conference: Madrid, Spain: October 8-10, 1985 |
local.citation.startingPage | 175 |
local.citation.endingPage | 178 |