نتایج جستجو برای: sound data
تعداد نتایج: 2491051 فیلتر نتایج به سال:
Automatic voice/music segment detection is expected for various applications. For the general applications of voice recognition and dictation, input voice for the recognition is needed to detect and remove music section automatically. In order to detect voice and music segments, where sound data contains both voice and music, this paper proposes weighted Block Cepstrum Flux (BCF) and optimizes ...
Background and Aim: Black staining after taking iron drops on the primary teeth is always concern of parents. There is not an exact explanation for the mechanism of iron black staining. The purpose of this study was to compare tooth discolorations, atomic absorption and structural changes of primary teeth enamel caused by two kinds of iron drops[ Kharazmi(Iran) and Fer-in-sol(USA)]. Materials ...
background and objectives: postoperative ileus is common after abdominal resection. it causes gas store,distention, nausea, vomiting, and even pain. this study examines the impact of gum chewing as a type of sham feeding on the duration of postoperative ileus. methods: in this randomized control trial study, 70 patients in two groups (each group n=35) underwent abdominal resection. the a group ...
sound power is considered as an excellent measure for evaluating the efficiency of noise controls as well as for comparing noise sources in workrooms. this parameter can be determined by sound pressure or intensity based methods in real conditions of workrooms. this paper aims empirically to compare these in situ methods in relation to a typical industrial machine located in workroom in terms o...
The MPEG-7 sound-recognition Descriptors and Description Schemes consist of tools for indexing audio media using probabilistic sound models. The Descriptors provide containers for category labels, as well as data structures for quantitative information about sound content. We describe the normative tools, as well as informative methods, for automatic description extraction and sound matching.
Spectral modeling synthesis (SMS) is a powerful tool for musical sound modeling. This technique considers a sound as a combination of a deterministic plus a stochastic component that makes possible for a synthesized sound to attain all the perceptual characteristics of the original sound. In this paper, we propose a modified SMS which includes a new transformation technique to synthesize the de...
OBJECTIVE To determine the levels of sound to which infants are exposed during routine transport by ambulance, aircraft, and helicopter. DESIGN Sound levels during 38 consecutive journeys from a regional level III neonatal intensive care unit were recorded using a calibrated data logging sound meter (Quest 2900). The meter was set to record "A" weighted slow response integrated sound levels, ...
Introduction[N1] :One of these annoying stimuli and a major source of stress in the NICU is sound. In neonatal intensive care units, sounds with different intensities and frequencies are produced from different sources such as fan devices, intermittent alarms, ventilators, telephones, door opening and closing, and staff conversations; Studies have reported that the average noise level in the NI...
Introduction: Noise is one of the most important pollutants in worksites. Hospitals are imposed to noise pollution. Considering lack of research in Sari educational hospitals and applicability of noise control by engineering controls and education, we proposed this research to evaluate the sound pressure level (SPL) in three educational hospitals of Sari, Iran. Methods: In a descriptive-analy...
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