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Convention Paper

Maintaining Sonic Texture with Time Scale Compression by a Factor of 100 or More

Authors: Maher, Robert

AES Convention 129 · Paper 8250 · November 2010

Abstract

Time lapse photography is a common technique to present a slowly evolving visual scene with an artificially rapid temporal scale. Events in the scene that unfold over minutes, hours, or days in real time can be viewed in a shorter video clip. Audio time scaling by a major compression factor can be considered the aural equivalent of time lapse video, but obtaining meaningful time-compressed audio requires interesting practical and conceptual challenges in order to retain the original sonic texture. This paper reviews a variety of existing techniques for compressing 24 hours of audio into just a few minutes of representative "time lapse" audio, and explores several useful modifications and challenges.

Details

Published in
AES Convention 129
AES Convention
129
Paper number
8250
Publication date
November 6, 2010
Session subject
Signal Analysis and Synthesis
Affiliation
Montana State University, Bozeman, MT, USA (See document for exact affiliation information.)
Type
Convention Paper