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Journal Article

Sound Texture Synthesis Using an Overlap–Add/Granular Synthesis Approach

Authors: Fröjd, Martin; Horner, Andrew

Journal of the Audio Engineering Society · Volume 57 · Issue 1/2 · pp. 29–37 · January 2009

Abstract

Creating an arbitrary length audio background sound, called sound texture, from a small original source is a form of sound synthesis. For example, in video games it may be desirable to continue the aural impression of blowing wind or background traffic for as long as the player remains in a scene that requires that background. Using a block segmented overlap and add algorithm with crossfades, the resulting sound preserves the subjective characteristics of the original yet without being perceived as repetitive. The original source is partitioned into blocks, which are then randomly sequenced. Block length of 2 seconds is optimum.

Details

Publication
Journal of the Audio Engineering Society
Volume
57
Issue
1/2
Pages
29–37
Publication date
January 6, 2009
Affiliation
Chalmers University of Technology; Hong Kong University of Science and Technology (See document for exact affiliation information.)
Type
Journal Article