Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Richard Vandervoort Cox"'
Publikováno v:
IEEE Transactions on Communications. 50:200-212
Real world source coding algorithms usually leave a certain amount of redundancy within the coded bit stream. Shannon (1948) already mentioned that this redundancy can be exploited at the receiver side to achieve a higher robustness against channel e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30a32208a4a9f29916461844d961f7fe
https://doi.org/10.1109/26.983317
https://doi.org/10.1109/26.983317
Publikováno v:
Proceedings., IEEE Workshop on Speech Coding for Telecommunications.
Backward-adaptive LPC prediction is a useful and relatively new scheme for low-delay speech coders. However, if not performed carefully, it can lead to numerical sensitivity problems, decoder divergence, or other unexpected problem in this paper, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3675ebf8b438f159eab7f584d3e470c
https://doi.org/10.1109/scft.1993.762350
https://doi.org/10.1109/scft.1993.762350
Publikováno v:
2000 IEEE Workshop on Speech Coding. Proceedings. Meeting the Challenges of the New Millennium (Cat. No.00EX421).
In mobile speech communication usually vector quantization (VQ) is employed to ensure high coding efficiency. Convolutional coding and softbit speech decoding can add a considerable amount of robustness. VQ as well as softbit decoding however can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c9bc0cc87cd47cee82a906b865ba0f7
https://doi.org/10.1109/scft.2000.878404
https://doi.org/10.1109/scft.2000.878404
Publikováno v:
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152).
Speech, audio, image or video signals are highly correlated and source coding algorithms are used to reduce the redundancy. Due to complexity and delay constraints the coded signal contains redundancy both inside one frame and also from frame to fram
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b1bf636d9651dc9d99162f9f7ed9ac1
https://doi.org/10.1109/vetecf.2000.883304
https://doi.org/10.1109/vetecf.2000.883304
Publikováno v:
ICC (3)
In digital transmission of speech, audio, images and video signals residual redundancy is often left after source coding due to the complexity and delay constraints. This redundancy remains both inside one block or frame but also in a time correlatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::375c2535ddf03e7da45d15f0abd492c9
https://doi.org/10.1109/isit.2000.866564
https://doi.org/10.1109/isit.2000.866564
Publikováno v:
ICASSP
Speech enhancement algorithms which are based on estimating the short-time spectral amplitude of the clean speech have better performance when a soft-decision gain modification, depending on the a priori probability of speech absence, is used. In rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a35e9bbec2c09ab1ec42603e23071cef
https://doi.org/10.1109/icassp.1999.759789
https://doi.org/10.1109/icassp.1999.759789
Autor:
Hong Kook Kim, Richard Vandervoort Cox
Publikováno v:
The Journal of the Acoustical Society of America. 121:1290
A frame erasure concealment technique for a bitstream-based feature extractor in a speech recognition system particularly suited for use in a wireless communication system operates to “delete” each frame in which an erasure is declared. The delet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12d50db1b5f5f25512e35087748536a7
https://doi.org/10.1121/1.2720067
https://doi.org/10.1121/1.2720067
Publikováno v:
The Journal of the Acoustical Society of America. 120:3452
The method and preprocessor enhances the intelligibility of narrowband speech without essentially lengthening the overall time duration of the signal. Both spectral enhancements and variable-rate time-scaling procedures are implemented to improve the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f623f8b8e522eb003d455423a1b6e68
https://doi.org/10.1121/1.2409451
https://doi.org/10.1121/1.2409451