نتایج جستجو برای: sound data
تعداد نتایج: 2491051 فیلتر نتایج به سال:
a b s t r a c t introduction:we investigated differential role of cortical and subcortical regions in verbal and non-verbal sound processing in ten patients who were native speakers of persian with unilateral cortical and/or unilateral and bilateral subcortical lesions and 40 normal speakers as control subjects. methods: the verbal tasks included monosyllabic, disyllabic dichotic and diotic tas...
In this paper, we design, simulate, and build an ultrasonic heat generator. In thermoacoustics, heat generated by the passage of alternating current through a thin conductor produces a sound wave. In this method, unlike other methods of sound production, moving parts are not used to vibrate air molecules, and as a result, the frequency response of these generators is flatter than other sound ge...
In this paper the influence of non-acoustic properties on the sound absorption coefficient of polyurethane foams as a porous medium is investigated. Biot’s equations with transfer matrix method, as the solution approach are employed to evaluate the sound absorption coefficient of selected polyurethane foams. The major issue is the dependency of non-acoustic properties on each other which makes ...
Open cell aluminum foams have good acoustic dampening properties. In this research, in order to improve the sound damping capacity of these foams, 0.9, 1.5 and 3wt% carbon nanotubes were added to the aluminum foam. Foams were produced by the space holder method in powder metallurgy. The results showed that Al-0.9wt%CNT nanocomposite foam had the highest average sound transmission loss in the fr...
Aquatic ecosystems are heterogeneous in terms of light and sound distribution. The aim of this study was to investigate the effect of environmental abiotic factors, light and sound stimuli, on Daphnia (Daphnia magna) swimming behaviour. Here, we examined behavioural changes of Daphnia (N=24) in response to light and sound treatments simultaneously. The treatments concerned a 2×2 design with br...
In speech synthesis, concatenative data-driven synthesis methods prevail. They use a database of recorded speech and a unit selection algorithm that selects the segments that match best the utterance to be synthesized. Transferring these ideas to musical sound synthesis allows a new method of high quality sound synthesis. Usual synthesis methods are based on a model of the sound signal. It is v...
This paper deals with the processing and manipulation of music and sound description data using functional programs in the OpenMusic visual programming environment. We go through several general features and present some toolkits created in this environment for the manipulation of different data formats (audio, MIDI, SDIF).
گرافیک مطبوعاتی در کنار تبلیغات بخشهای مهم و کاربردی گرافیک دیزاین را تشکیل می دهند . شاید به جرات بتوان ادعا کرد که اکثر طراحان گرافیک در این دو حوزه مشغول به کارند و معشیت خود را از این دو راه تامین می کنند. از این بین، مطبوعات به نسبت تبلیغات بیشتر مورد بی توجهی قرار گرفته و کیفیت نازل تولیدات آن در سطح جامعه، گویای این مدعاست، در حالی که سطح تاثیر این تولیدات در فرهنگ بصری جامعه و تشویق مخا...
in this thesis a calibration transfer method is used to achieve bilinearity for augmented first order kinetic data. first, the proposed method is investigated using simulated data and next the concept is applied to experimental data. the experimental data consists of spectroscopic monitoring of the first order degradation reaction of carbaryl. this component is used for control of pests in frui...
When first approaching a two-dimensional (2D) data table, a user often wants to get a quick overview of the data before analysing them in more detail. Blind and visually impaired people cannot do this task at all using visual displays. Furthermore, speech synthesisers do not help sufficiently with browsing and pattern identification. The approach taken in this research work is to use other sens...
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