The Resource Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book)
Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book)
Resource Information
The item Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book) represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Sydney Jones Library, University of Liverpool.This item is available to borrow from 1 library branch.
Resource Information
The item Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book) represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Sydney Jones Library, University of Liverpool.
This item is available to borrow from 1 library branch.
- Summary
- Bandwidth 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
- Language
- eng
- Extent
- 1 PDF (xi, 71 pages)
- Contents
-
- 1. Introduction -- 1.1 Motivation -- 1.2 Existing bandwidth extension algorithms -- 1.3 Existing perceptual models --
- 2. 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 --
- 3. 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 --
- 4. Bandwidth extension using spline fitting -- 4.1 Overview of existing work -- 4.1.1 Bandwidth extension -- 4.1.2 Perceptual models --
- 5. Summary -- Notation -- Bibliography -- Authors' biographies
- Isbn
- 9781627053143
- Label
- Bandwidth extension of speech using perceptual criteria
- Title
- Bandwidth extension of speech using perceptual criteria
- Statement of responsibility
- Visar Berisha, Steven Sandoval, and Julie Liss
- Language
- eng
- Summary
- Bandwidth 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
- Cataloging source
- CaBNVSL
- http://library.link/vocab/creatorName
- Berisha, Visar
- Dewey number
- 006.454
- Illustrations
- illustrations
- Index
- no index present
- LC call number
- TK7882.S65
- LC item number
- B473 2013
- Literary form
- non fiction
- Nature of contents
-
- dictionaries
- abstracts summaries
- bibliography
- http://library.link/vocab/relatedWorkOrContributorDate
- 1984-
- http://library.link/vocab/relatedWorkOrContributorName
-
- Sandoval, Steven
- Liss, Julie Marie
- http://library.link/vocab/subjectName
-
- Compression (Audiology)
- Compressed speech
- Speech perception
- Psychoacoustics
- Target audience
-
- adult
- specialized
- Label
- Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book)
- Bibliography note
- Includes bibliographical references (pages 61-69)
- Carrier category
- online resource
- Carrier MARC source
- rdacarrier
- Color
- multicolored
- Content category
- text
- Content type MARC source
- rdacontent
- Contents
-
- 1. Introduction -- 1.1 Motivation -- 1.2 Existing bandwidth extension algorithms -- 1.3 Existing perceptual models --
- 2. 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 --
- 3. 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 --
- 4. Bandwidth extension using spline fitting -- 4.1 Overview of existing work -- 4.1.1 Bandwidth extension -- 4.1.2 Perceptual models --
- 5. Summary -- Notation -- Bibliography -- Authors' biographies
- Control code
- 201309ASE013
- Dimensions
- unknown
- Extent
- 1 PDF (xi, 71 pages)
- File format
- multiple file formats
- Form of item
- online
- Isbn
- 9781627053143
- Issn
- 1938-1735
- Media category
- electronic
- Media MARC source
- isbdmedia
- Other control number
- 10.2200/S00535ED1V01Y201309ASE013
- Other physical details
- illustrations.
- Reformatting quality
- access
- Specific material designation
- remote
- System details
- System requirements: Adobe Acrobat Reader
- Label
- Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book)
- Bibliography note
- Includes bibliographical references (pages 61-69)
- Carrier category
- online resource
- Carrier MARC source
- rdacarrier
- Color
- multicolored
- Content category
- text
- Content type MARC source
- rdacontent
- Contents
-
- 1. Introduction -- 1.1 Motivation -- 1.2 Existing bandwidth extension algorithms -- 1.3 Existing perceptual models --
- 2. 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 --
- 3. 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 --
- 4. Bandwidth extension using spline fitting -- 4.1 Overview of existing work -- 4.1.1 Bandwidth extension -- 4.1.2 Perceptual models --
- 5. Summary -- Notation -- Bibliography -- Authors' biographies
- Control code
- 201309ASE013
- Dimensions
- unknown
- Extent
- 1 PDF (xi, 71 pages)
- File format
- multiple file formats
- Form of item
- online
- Isbn
- 9781627053143
- Issn
- 1938-1735
- Media category
- electronic
- Media MARC source
- isbdmedia
- Other control number
- 10.2200/S00535ED1V01Y201309ASE013
- Other physical details
- illustrations.
- Reformatting quality
- access
- Specific material designation
- remote
- System details
- System requirements: Adobe Acrobat Reader
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<div class="citation" vocab="http://schema.org/"><i class="fa fa-external-link-square fa-fw"></i> Data from <span resource="http://link.liverpool.ac.uk/portal/Bandwidth-extension-of-speech-using-perceptual/ceILe-pGr8E/" typeof="Book http://bibfra.me/vocab/lite/Item"><span property="name http://bibfra.me/vocab/lite/label"><a href="http://link.liverpool.ac.uk/portal/Bandwidth-extension-of-speech-using-perceptual/ceILe-pGr8E/">Bandwidth extension of speech using perceptual criteria, Visar Berisha, Steven Sandoval, and Julie Liss, (electronic book)</a></span> - <span property="potentialAction" typeOf="OrganizeAction"><span property="agent" typeof="LibrarySystem http://library.link/vocab/LibrarySystem" resource="http://link.liverpool.ac.uk/"><span property="name http://bibfra.me/vocab/lite/label"><a property="url" href="http://link.liverpool.ac.uk/">Sydney Jones Library, University of Liverpool</a></span></span></span></span></div>
