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Akademický článek
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Autor:
M.W. Hoffman, Z. Li
Publikováno v:
IEEE Transactions on Speech and Audio Processing. 7:91-95
A robustly constrained minimum variance adaptive array algorithm for general noise suppression and subsequent speech coding is applied in realistic room environments. The results indicate that the robust algorithm is suitable for enhancing speech for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e3ca40d61c6d4cad69059c4dc49057
https://doi.org/10.1109/89.736335
https://doi.org/10.1109/89.736335
Autor:
M.W. Hoffman, K.M. Buckley
Publikováno v:
Twenty-Second Asilomar Conference on Signals, Systems and Computers.
This paper considers using an MBA, along with high resolution spatial spectrum estimation procedures, to estimate locations of broad-band EHF sources. In particular, spatial spectrum estimation with a one meter continuous aperture MBA is investigated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b5a116f45f77b41c1018d3f3067907f
https://doi.org/10.1109/acssc.1988.754662
https://doi.org/10.1109/acssc.1988.754662
Autor:
K.M. Buckley, M.W. Hoffman
Publikováno v:
1990 Conference Record Twenty-Fourth Asilomar Conference on Signals, Systems and Computers, 1990..
An adaptive digital spatial filter is applied to a multiple microphone array which will be used as a hearing aid input. Models are employed to accurately reflect the effects of acoustic headshadow on the microphone array. Robust constraints are appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b08170120e34d82bf51a6fb490ca2e6e
https://doi.org/10.1109/acssc.1990.523294
https://doi.org/10.1109/acssc.1990.523294
Publikováno v:
The Thrity-Seventh Asilomar Conference on Signals, Systems & Computers, 2003.
We examine an old waveform coding technique, D*PCM, in the context of wideband coding of speech and audio. We show that the use of a modified form of this approach has the promise of providing a very low complexity, high quality, wideband audio coder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5c127f9ec460e57ef46be16a3032db0
https://doi.org/10.1109/acssc.2003.1291922
https://doi.org/10.1109/acssc.2003.1291922
A stochastic image-based indoor channel model for use in ultra-wideband 3-d sensor array simulations
Publikováno v:
IEEE Conference on Ultra Wideband Systems and Technologies, 2003.
A simple, robust 3-D stochastic image-based indoor channel (SIBIC) model is presented as an alternative to a statistical or a deterministic model for a rectangular room environment. This model is based on an image model; however, it treats the virtua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba96f2a4e3031d5cd6e0b03c42e9dee3
https://doi.org/10.1109/uwbst.2003.1267852
https://doi.org/10.1109/uwbst.2003.1267852
Publikováno v:
[1992] Conference Record of the Twenty-Sixth Asilomar Conference on Signals, Systems & Computers.
Issues concerning the implementation of a real-time adaptive spatial filter to be used as a hearing aid preprocessor are addressed. The goal of the ongoing study is the development of a robust processor that offers a user spatial selectivity and atte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::855544900a6736b8579c738656af779c
https://doi.org/10.1109/acssc.1992.269213
https://doi.org/10.1109/acssc.1992.269213
Autor:
M.W. Hoffman
Publikováno v:
Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics.
The problem of adaptively combining the outputs of an array of microphones as a single input for a hearing aid is investigated. A robust processor based on a constrained minimum variance optimization approach is used. One fundamental criteria employe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::642467c8905d12f5bce4bd23dc633ce8
https://doi.org/10.1109/aspaa.1993.379992
https://doi.org/10.1109/aspaa.1993.379992
Autor:
Zhao Li, M.W. Hoffman
Publikováno v:
Conference Record of The Thirtieth Asilomar Conference on Signals, Systems and Computers.
To improve speech intelligibility and quality for coding, an array preprocessor is proposed to enhance noisy speech. The microphone array data is processed with a robust quadratically and linearly constrained minimum variance algorithm. The processor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7a14cf2bdbe311e349b1131cad44b5a
https://doi.org/10.1109/acssc.1996.600814
https://doi.org/10.1109/acssc.1996.600814