نتایج جستجو برای: combined noise

تعداد نتایج: 563331  

Journal: :journal of research in rehabilitation sciences 0
مریم دلفی زینب آقاجانی مهسا بخیت سمانه حسین زاده محمدحسین نیلفروش maryam delphi

abstract introduction: noise exposure is the most common cause of tinnitus. a comprehensive assessment of tinnitus and its impact on the quality of life cannot be achieved merely by evaluating the psychoacoustic characteristics of tinnitus. this study aimed at exploring the potential relationship between tinnitus psychoacoustic characteristics and the resulting handicap. materials and methods: ...

Journal: :International journal of occupational safety and ergonomics : JOSE 2009
Iqbal Ahmed Khan Zulquernain Mallick Zahid A Khan Mohammed Muzammil

This study investigated the combined effect of noise and vibration on the performance of a readability task in a mobile driving environment by operators of different ages. Subjects performed a readability task on a laptop computer in a sitting posture without their backs supported under varying levels of noise and vibration. Data in terms of a mean number of characters read per minute were coll...

2011
Zbigniew Koziel Eulalia Peris James Woodcock Gennaro Sica Andrew T. Moorhouse David C. Waddington

The DEFRA funded project “Human Response to Vibration in Residential Environments” investigates relationships between human response in residential areas, primarily in terms of annoyance, and combined effects from exposure to vibration and noise. This paper focuses on the results from the analysis of noise exposure in this study, in particular from construction work and railway traffic. The exp...

1999
Brigitte Schulte-Fortkamp

Noise annoyance judgments depend on multiple factors like environmental area, noise source, characteristic of noises, number of noise events over a day, subjective experience with noises, the social situation. Judging annoyance includes a wide range of variability, which is highly correlated with the variability of living conditions. Since social environment and lifestyle shape up the psycholog...

2013
Bikesh Kumar Singh P. Batra Kesari Verma A. S. Thoke

An ultrasound image provides the radiologist with noninvasive, low cost, and real-time images that can help them in diagnosis, planning and therapy. However low PSNR (picture signal to noise ratio) in ultrasound images causes difficulties in correct interpretation of ultrasound images. Further speckle noise present in ultrasound images is considered to be the major cause of its low PSNR. In thi...

Journal: :Ear and hearing 2015
Tobias Rader Youssef Adel Hugo Fastl Uwe Baumann

OBJECTIVE The aim of this study is to simulate speech perception with combined electric-acoustic stimulation (EAS), verify the advantage of combined stimulation in normal-hearing (NH) subjects, and then compare it with cochlear implant (CI) and EAS user results from the authors' previous study. Furthermore, an automatic speech recognition (ASR) system was built to examine the impact of low-freq...

2014
Snehal Ambulkar Priti Golar

An unwanted factor in digital images and videos called as Noise is responsible for hiding the details and destroying image information. Hence denoising has great importance in the detail restoration and to improve the quality measures. A simple adaptive median filter (SAMF) is one of the most promising algorithm capable of denoising the videos to better extent, but incapable to use all the neig...

2011
Florian Heese Thomas Esch

This contribution presents a dual channel speech enhancement system that is operating in the frequency domain. State-of-the-art estimators usually rely on the assumption that the noise signal is stationary or only slightly time-varying. In this contribution we are explicitly considering rapidly time-varying harmonic noise (e.g., engine noise). Therefore we take a spot microphone into account en...

2009
T. Rader U. Baumann H. Fastl

Speech perception in noise is one of the most difficult tasks for people suffering from hearing impairment. The Oldenburg Sentence Test (OLSA) is a useful tool to investigate speech intelligibility threshold in a noise environment. In the present study, a multi-source noise field (MSNF), introduced by Rader et al. (DAGA2008), consisting of a four-loudspeaker array with independent noise sources...

2004
Ning Ma Martin Bouchard A. Goubran

Speech enhancement algorithms have been employed successfully in many areas such as VoIP, automatic speech recognition and speaker verification. Some of the methods assume that the environmental noise is white noise. However, when used in colored noise environments, those methods will produce a weaker performance. Approaches for colored noise have also been previously proposed, however those pr...

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