نتایج جستجو برای: spectral parameters

تعداد نتایج: 727076  

2012
Yamato Ohtani Masatsune Tamura Masahiro Morita Takehiko Kagoshima Masami Akamine

This paper describes a statistical spectral parameter emphasis technique for HMM-based speech synthesis using mel-scaled line spectral pair (mel-LSP). Spectral parameter emphasis is effective for compensating over-smoothed spectra in HMM-based speech synthesis. However, there is no conventional technique that satisfies such requirements as automatic tuning for different speakers and realtime sy...

Journal: :تحقیقات مهندسی کشاورزی 0
محمدعلی رستمی استادیار بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی و منابع طبیعی استان کرمان محمدحسین رئوفت استاد گروه مکانیک ماشین های کشاورزی دانشگاه شیراز

satellite imagery was used as a rapid and spatially explicit method to delineate crop residue cover and to estimate the use and intensity of conservation tillage. the potential of multispectral high-spatial resolution of worldview-2 local data was evaluated using 11 satellite spectral indices and linear spectral unmixing analysis (lsua). experimental plots were examined; residue cover was measu...

2011
Corinna Harwardt

Vocal effort changes induce various modifications to acoustic characteristics of speech. In this paper we investigate the impact of raised vocal effort on the speech spectrum. In particular, we look at different spectral parameters and compare the changes. The parameters we take into account are spectral tilt, spectral center of gravity, energy ratio and spectral moments. We carry out tests on ...

Hyperspectral data in Remote Sensing which have been gathered with efficient spectral resolution (about 10 nanometer) contain a plethora of spectral bands (roughly 200 bands). Since precious information about the spectral features of target materials can be extracted from these data, they have been used exclusively in hyperspectral target detection. One of the problem associated with the detect...

2004
Taoufik En-Najjary Olivier Rosec Thierry Chonavel

Most of the research in Voice Conversion (VC) is devoted to spectral transformation while the conversion of prosodic features is essentially obtained through a simple linear transformation of pitch. These separate transformations lead to an unsatisfactory speech conversion quality, especially when the speaking styles of the source and target speakers are different. In this paper, we propose a m...

ژورنال: فیزیک زمین و فضا 2017

Nowadays, viable and cost-effective methods play a vital role in hydrocarbon exploration up to the point that geoscientists cannot rule out the importance of the passive seismic method (PSM) in oil exploration operations. This method is based on seismic energy, which has a natural source. This study focuses on seismic energy anomaly of 1-6 Hz. Some researches show that spectral and polarization...

Journal: :فیزیک زمین و فضا 0
حسن مقدم نادر فنایی حسین حمزه لو

contrary to the long period ground motions that can be predicted and estimated, high frequency ground motions have random character and behave stochastically. stochastic modeling methods are usually used for the modeling of high frequency ground motions where there are not strong ground motion records. stochastic methods are of two kinds: in the first one, the seismic source is considered as a ...

Journal: :Journal of biomedical optics 2008
Sasha McGee Jelena Mirkovic Vartan Mardirossian Alphi Elackattu Chung-Chieh Yu Sadru Kabani George Gallagher Robert Pistey Luis Galindo Kamran Badizadegan Zimmern Wang Ramachandra Dasari Michael S Feld Gregory Grillone

In order to evaluate the impact of anatomy on the spectral properties of oral tissue, we used reflectance and fluorescence spectroscopy to characterize nine different anatomic sites. All spectra were collected in vivo from healthy oral mucosa. We analyzed 710 spectra collected from the oral cavity of 79 healthy volunteers. From the spectra, we extracted spectral parameters related to the morpho...

2004
S. S. Ray J. P. Singh Gargi Das Sushma Panigrahy

This present study explores the use high-resolution multi-spectral remote sensing data for generating within-field soil variability map as an inputs required for site-specific management of agriculture. The study was conducted for an experimental plot in Central Potato Research Station of Jalandhar, India. Thirty-five soil samples were collected from the field at regular intervals. The samples ...

Journal: :تحقیقات دامپزشکی 0
مجید مسعودی فرد گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران علیرضا وجهی گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران سارنگ سروری گروه علوم درمانگاهی دانشکده دامپزشکی دانشگاه تهران سمیه اسدزاده منجیلی دانش آموخته دانشکده دامپزشکی دانشگاه تهران

doppler ultrasound can provide important information about vascular problems through the analysis of blood flow wave-form. the purpose of this study was obtaining the normal images of color doppler and estimation of blood flow velocity parameters of femoral artery in rabbits. left and right femoral arteries of 8 healthy adult new zealand rabbits were evaluated. color and spectral doppler images...

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