IMPLEMENTING THE FADE-IN AUDIO EFFECT FOR REAL-TIME COMPUTING
Lucian LUPŞA-TĂTARU
lupsa@programmer.netTransilvania University of Braşov, Faculty of Electrical Engineering and Computer Science, Department of Electrical Engineering and Applied Physics, Bd. Eroilor No. 29, Braşov, RO-500036 (Romania)
Abstract
Audio fading is performed in order to smoothly modify over time the level of an audio signal. In particular, the fade-in audio effect designates a gradually increase in the audio volume, starting from silence. In practice, audio fading is mostly carried out within audio editors i.e. in off-line mode by employing various transcendental functions to enforce the fade profile. Taking into account the increasing demand for interactive media services requiring real-time audio processing, the present approach advances an effective method of constructing the audio fade-in shape with a view to real-time computing. The paper encompasses plain and straightforward implementations in pure JavaScript, prepared precisely to validate the method of audio volume processing proposed here.
Keywords:
audio effects, audio fade-in, real-time processing, HTML5, web appsReferences
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Authors
Lucian LUPŞA-TĂTARUlupsa@programmer.net
Transilvania University of Braşov, Faculty of Electrical Engineering and Computer Science, Department of Electrical Engineering and Applied Physics, Bd. Eroilor No. 29, Braşov, RO-500036 Romania
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