IMPLEMENTING THE FADE-IN AUDIO EFFECT FOR REAL-TIME COMPUTING

Lucian LUPŞA-TĂTARU

lupsa@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)

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 apps

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Published
2019-06-30

Cited by

LUPŞA-TĂTARU, L. (2019). IMPLEMENTING THE FADE-IN AUDIO EFFECT FOR REAL-TIME COMPUTING. Applied Computer Science, 15(2), 5–18. https://doi.org/10.23743/acs-2019-09

Authors

Lucian LUPŞA-TĂTARU 
lupsa@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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