Zobrazeno 1 - 10
of 320
pro vyhledávání: '"Allen Gersho"'
Publikováno v:
European Transactions on Telecommunications. 5:591-602
A variable bit-rate speech coder intended for digital cellular applications is described. A voice activity detection algorithm is used to distinguish active speech from background noise. Each frame of active speech is further classified to distinguis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79ef2d5a400db60bdb4efc7eb0ecb7b8
https://doi.org/10.1002/ett.4460050510
https://doi.org/10.1002/ett.4460050510
Publikováno v:
Computer Communications. 28:1643-1657
Wireless LANs are becoming commonplace because of their ease in providing mobile communication. As use of IEEE 802.11 continues to expand, support for voice will become a desirable feature. Supporting voice conversations over a packet network is more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac42250199d3990f7fdc8658aa23d231
https://doi.org/10.1016/j.comcom.2005.02.009
https://doi.org/10.1016/j.comcom.2005.02.009
Publikováno v:
IEEE Transactions on Speech and Audio Processing. 11:648-659
A novel paradigm based on pitch-adaptive windows is proposed for solving the problem of encoding the fixed codebook excitation in low bit-rate CELP coders. In this method, the nonzero excitation in the fixed codebook is substantially localized to a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af3cfc981672db449671e6ba3b6e9f4a
https://doi.org/10.1109/tsa.2003.815530
https://doi.org/10.1109/tsa.2003.815530
Publikováno v:
IEEE Transactions on Speech and Audio Processing. 9:632-646
A new hybrid speech coding technique is presented in this paper, which combines a frequency-domain parametric coder (for stationary voiced and stationary unvoiced speech) with a time-domain waveform coder (for transition speech). Our hybrid coder use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08048e7cdf7b52c0e3031856ae052686
https://doi.org/10.1109/89.943341
https://doi.org/10.1109/89.943341
Autor:
O. Gottesman, Allen Gersho
Publikováno v:
IEEE Transactions on Speech and Audio Processing. 9:786-798
This paper presents a high quality enhanced waveform interpolative (EWI) speech coder at low bit-rate. The system incorporates novel features such as optimization of the slowly evolving waveform (SEW) for interpolation, analysis-by-synthesis (AbS) ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca790a5e7e6c8c3af1a5a218ab93cb3e
https://doi.org/10.1109/89.966082
https://doi.org/10.1109/89.966082
Autor:
Amitava Das, Allen Gersho
Publikováno v:
International Journal of Speech Technology. 2:317-327
At bit rates of 4 kbps and below, conventional time-domain algorithms such as CELP fail to retain high voice quality and robust performance against background noise as their waveform-matching ability is curtailed by the severely limited codebook spac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2062d7b33397669e76dcff2a8b0e971
https://doi.org/10.1007/bf02108647
https://doi.org/10.1007/bf02108647
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 21:159-173
A new learning algorithm is proposed for piecewise regression modeling. It employs the technique of deterministic annealing to design space partition regression functions. While the performance of traditional space partition regression functions such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b045e7ceebb35c461c1f13feec1464e8
https://doi.org/10.1109/34.748824
https://doi.org/10.1109/34.748824
Autor:
Allen Gersho, Robert M. Gray
Herb Caen, a popular columnist for the San Francisco Chronicle, recently quoted a Voice of America press release as saying that it was reorganizing in order to'eliminate duplication and redundancy.'This quote both states a goal of data compression an
Speech coding has been an ongoing area of research for several decades, yet the level of activity and interest in this area has expanded dramatically in the last several years. Important advances in algorithmic techniques for speech coding have recen
Speech and Audio Coding for Wireless and Network Applications contains 34 chapters, loosely grouped into six topical areas. The chapters in this volume reflect the progress and present the state of the art in low-bit-rate speech coding, primarily at