نتایج جستجو برای: clipped

تعداد نتایج: 1497  

Journal: :Informatica (Slovenia) 2008
Abdelhakim Dahimene Mohamed Noureddine Arab Azrar

This paper deals with the problem of peak clipped speech. Our basic assumption is that the clipped speech is voiced and can be linearly predicted with a high accuracy. The coefficients of linear prediction are computed using two different algorithms: a least square direct method and a recursive Kalman filter. The speech reconstruction is accomplished using backward prediction. Povzetek: Predsta...

Journal: :Speech Communication 2015
Fanhu Bie Dong Wang Jun Wang Thomas Fang Zheng

Clipping is often observed in speech acquisition, due to the limited numerical range or the non-linear compensation of recording devices. The clipping inevitably changes the spectrum of speech signals, and thus partially distorts the speaker information contained in the signal. This paper investigates the impact of signal clipping on speaker recognition, and proposes a simple yet effective clip...

Journal: :CoRR 2018
Jianjun Yuan Andrew G. Lamperski

We propose an algorithm for online convex optimization which examines a clipped long-term constraint of the form T ∑ t=1 [g(xt)]+, encoding the cumulative constraint violation. Previous literature has focused on longterm constraints of the form T ∑ t=1 g(xt), for which strictly feasible solutions can cancel out the effects of violated constraints. In this paper, we generalize the results in [16...

2012
Seong-Geon Bae Hyung-Woo Park Myung-Jin Bae

There are various methods to improve signal under the clipped environment of voiced sound in the voice signal processing. In the case of the majority of clipping signal restoration, it will be concentrated in sound quality deterioration of low frequency as they are converged into voiced sound from the characteristic viewpoint of sound quality deterioration. Therefore, in the case of clipping of...

1999
P. P. Kormanik

” AbshsCt-Seedfings ffOnl three cpen-pctlinsted half-sib white ask seadfofs were clipped in midJuly and their development was compared 10 nonclipped controls after one growing season. I n g e n e r a l w h e n d a t e were analyzed by family clipped seedlings were significantly less desirable in three to six of the eight vartables tested. Numerically, In all families seedlots, the clipped seedl...

Journal: :Neurologia medico-chirurgica 2002
Jae Hong Sim Soo Chun Kim Moo Seong Kim

A 38-year-old non-smoker man presented with a ruptured aneurysm one month after clipping of a previous aneurysm. He was first admitted because of sudden onset of severe headache. Brain computed tomography showed subarachnoid hemorrhage. Angiography showed an aneurysm of the left anterior choroidal artery which was surgically clipped. Two weeks later, he was discharged without neurological defic...

Journal: :Hypertension 1993
D H Sigmon W H Beierwaltes

In two-kidney, one clip (2K1C) renovascular hypertension, blood flow is reduced to the clipped but not to the nonclipped kidney, despite elevated angiotensin II. To determine possible interactions between endothelium-derived nitric oxide and angiotensin, we studied bilateral renal blood flow using radioactive microspheres in anesthetized 2K1C hypertensive rats 4 weeks after clipping. We studied...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2008
Liliana Monica Bivol Michael Hultström Oddrun A Gudbrandsen Rolf K Berge Bjarne M Iversen

The effect of tetradecylthioacetic acid (TTA) on the cyclooxygenase (COX) system was investigated in two-kidney, one-clip (2K1C) hypertensive rats. The systolic blood pressure (BP) was increased 6 wk after clipping to 183 +/- 4 vs.127 +/- 3 mmHg in TTA-treated 2K1C rats. The COX1 protein expression was not affected either by the 2K1C procedure or by TTA treatment. COX2 expression was upregulate...

Journal: :Hypertension 2010
Fredrik Palm Maristela Onozato William J Welch Christopher S Wilcox

Angiotensin II maintains renal cortical blood flow and renal oxygenation in the clipped kidney of early 2-kidney, 1-clip Goldblatt hypertensive (2K,1C) rats. The involvement of Ang II is believed to decline, whereas oxidative stress increases during the progression of 2K,1C hypertension. We investigated the hypothesis that the acute administration of drugs to inhibit reactive oxygen species (Te...

Journal: :Circulation research 1978
S Ichikawa J A Johnson W L Fowler C G Payne K Kurz W F Keitzer

Pressor responses to norepinephrine (NE) infusions were examined in normal rabbits, in rabbits with renal artery stenosis of over 30 days' duration (chronic renal hypertensive rabbits), and in rabbits with renal artery stenosis of 3 days' duration (3-day clipped rabbits). The 3-day clipped rabbits did not have hypertension, but they showed the same increased pressor responses to NE as did the c...

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