| 000 | 04994nam a2200709 i 4500 | ||
|---|---|---|---|
| 001 | 6812594 | ||
| 003 | IEEE | ||
| 005 | 20200413152912.0 | ||
| 006 | m eo d | ||
| 007 | cr cn |||m|||a | ||
| 008 | 131220s2013 caua foab 000 0 eng d | ||
| 020 |
_a9781627053143 _qebook |
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| 020 |
_z9781627053136 _qprint |
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| 024 | 7 |
_a10.2200/S00535ED1V01Y201309ASE013 _2doi |
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| 035 | _a(CaBNVSL)swl00402964 | ||
| 035 | _a(OCoLC)866564190 | ||
| 040 |
_aCaBNVSL _beng _erda _cCaBNVSL _dCaBNVSL |
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| 050 | 4 |
_aTK7882.S65 _bB473 2013 |
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| 082 | 0 | 4 |
_a006.454 _223 |
| 090 |
_a _bMoCl _e201309ASE013 |
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| 100 | 1 |
_aBerisha, Visar., _eauthor. |
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| 245 | 1 | 0 |
_aBandwidth extension of speech using perceptual criteria / _cVisar Berisha, Steven Sandoval, and Julie Liss. |
| 264 | 1 |
_aSan Rafael, California (1537 Fourth Street, San Rafael, CA 94901 USA) : _bMorgan & Claypool, _c2013. |
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| 300 |
_a1 PDF (xi, 71 pages) : _billustrations. |
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| 336 |
_atext _2rdacontent |
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| 337 |
_aelectronic _2isbdmedia |
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| 338 |
_aonline resource _2rdacarrier |
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| 490 | 1 |
_aSynthesis lectures on algorithms and software in engineering, _x1938-1735 ; _v# 13 |
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| 538 | _aMode of access: World Wide Web. | ||
| 538 | _aSystem requirements: Adobe Acrobat Reader. | ||
| 500 | _aPart of: Synthesis digital library of engineering and computer science. | ||
| 500 | _aSeries from website. | ||
| 504 | _aIncludes bibliographical references (pages 61-69). | ||
| 505 | 0 | _a1. Introduction -- 1.1 Motivation -- 1.2 Existing bandwidth extension algorithms -- 1.3 Existing perceptual models -- | |
| 505 | 8 | _a2. Principles of bandwidth extension -- 2.1 Explicit high-band generation -- 2.2 High-band generation based on the source/filter model -- 2.2.1 Envelope estimation -- 2.2.2 Excitation signal generation -- | |
| 505 | 8 | _a3. Psychoacoustics -- 3.1 General overview -- 3.1.1 Human auditory system -- 3.1.2 Masking -- 3.2 Existing psychoacoustic models -- 3.2.1 Auditory excitation patterns -- 3.2.2 Perceptual loudness -- | |
| 505 | 8 | _a4. Bandwidth extension using spline fitting -- 4.1 Overview of existing work -- 4.1.1 Bandwidth extension -- 4.1.2 Perceptual models -- | |
| 505 | 8 | _a5. Summary -- Notation -- Bibliography -- Authors' biographies. | |
| 506 | 1 | _aAbstract freely available; full-text restricted to subscribers or individual document purchasers. | |
| 510 | 0 | _aCompendex | |
| 510 | 0 | _aINSPEC | |
| 510 | 0 | _aGoogle scholar | |
| 510 | 0 | _aGoogle book search | |
| 520 | 3 | _aBandwidth extension of speech is used in the International Telecommunication Union G.729.1 standard in which the narrowband bitstream is combined with quantized high-band parameters. Although this system produces high-quality wideband speech, the additional bits used to represent the high band can be further reduced. In addition to the algorithm used in the G.729.1 standard, bandwidth extension methods based on spectrum prediction have also been proposed. Although these algorithms do not require additional bits, they perform poorly when the correlation between the low and the high band is weak. In this book, two wideband speech coding algorithms that rely on bandwidth extension are developed. The algorithms operate as wrappers around existing narrowband compression schemes. More specifically, in these algorithms, the low band is encoded using an existing toll-quality narrowband system, whereas the high band is generated using the proposed extension techniques. The first method relies only on transmitted high-band information to generate the wideband speech. The second algorithm uses a constrained minimum mean square error estimator that combines transmitted high-band envelope information with a predictive scheme driven by narrowband features. Both algorithms make use of novel perceptual models based on loudness that determine optimum quantization strategies for wideband recovery and synthesis. Objective and subjective evaluations reveal that the proposed system performs at a lower average bit rate while improving speech quality when compared to other similar algorithms. | |
| 530 | _aAlso available in print. | ||
| 588 | _aTitle from PDF title page (viewed on December 20, 2013). | ||
| 650 | 0 | _aCompression (Audiology) | |
| 650 | 0 | _aCompressed speech. | |
| 650 | 0 | _aSpeech perception. | |
| 650 | 0 | _aPsychoacoustics. | |
| 653 | _aSpeech compression | ||
| 653 | _abandwidth extension | ||
| 653 | _aloudness | ||
| 653 | _apsychoacoustics | ||
| 700 | 1 |
_aSandoval, Steven, _d1984-, _eauthor. |
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| 700 | 1 |
_aLiss, Julie Marie., _eauthor. |
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| 776 | 0 | 8 |
_iPrint version: _z9781627053136 |
| 830 | 0 | _aSynthesis digital library of engineering and computer science. | |
| 830 | 0 |
_aSynthesis lectures on algorithms and software in engineering ; _v# 13. _x1938-1735 |
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| 856 | 4 | 2 |
_3Abstract with links to resource _uhttp://ieeexplore.ieee.org/servlet/opac?bknumber=6812594 |
| 856 | 4 | 0 |
_3Abstract with links to full text _uhttp://dx.doi.org/10.2200/S00535ED1V01Y201309ASE013 |
| 999 |
_c562037 _d562037 |
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