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A real-time implementation of G.726 with tree coding
| dc.creator | Kokes, Mark Gavin | |
| dc.date.accessioned | 2012-06-07T22:49:21Z | |
| dc.date.available | 2012-06-07T22:49:21Z | |
| dc.date.created | 1997 | |
| dc.date.issued | 1997 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-K65 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references: p. 73-75. | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | A real-time implementation of an ITU-T C.726 adaptive differential pulse code modulation (ADPCM) codec is developed for desktop, packet switched audio-conferencing over the Internet. The real-time codec is implemented in C on a UNIX (Solaris) platform. A non-real-time version also exists for the Windows 95 operating system. The real-time G.726 implementation is compared to existing speech coders on the basis of output speech quality. These comparisons are made with the notion that all competing coders operate at the same output bit rate (16 Kbps). The developed C.726 codec is compared to an existing implementation of G.723, its equivalent, as well as multiple configurations of a low delay tree codec, also developed during the course of this research. The tree codec consists of a non-real-time, Windows 95 based, low delay, low complexity, 16 Kbps algorithm. The developed tree coding algorithm incorporates a G.726 code generator, a (M,L) tree search mechanism, a single symbol release rule, and a mean squared error (MSE) distortion measure. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | electrical engineering. | en |
| dc.subject | Major electrical engineering. | en |
| dc.title | A real-time implementation of G.726 with tree coding | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | electrical engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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