Visual Audio: An Interactive Tool for Analyzing and Editing of Audio in the Spectrogram

  • We present a tool for analyzing and editing audio signals in the visual domain. As visual representation we use spectrograms, which give descriptive information about the sound. This allows analysing and editing audio in a “what you see is what you hear” style. Gabor analysis and synthesis serves as a basis to create images and recreate audio signals from the edited images in hi-fi quality. As the structures in the spectrogram are rather complex, image processing and computer vision methods are applied for smart user assisted editing. Templates based on sounds recorded under defined conditions are therefore used. This allows detecting, separating, eliminating and/or modifying audio objects supervised (interactively) or automatically. We further propose the usage of resolution zooming, to support manipulating the spectrogram of a signal at any chosen time-frequency resolution.

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Metadaten
Author:C. Gregor van den BoogaartGND, Rainer LienhartGND
URN:urn:nbn:de:bvb:384-opus4-1221
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/171
Series (Serial Number):Reports / Technische Berichte der Fakultät für Angewandte Informatik der Universität Augsburg (2005-22)
Type:Report
Language:English
Publishing Institution:Universität Augsburg
Release Date:2006/06/06
GND-Keyword:Digitale Audiotechnik; Audio-Mastering
Institutes:Fakultät für Angewandte Informatik
Fakultät für Angewandte Informatik / Institut für Informatik
Fakultät für Angewandte Informatik / Institut für Informatik / Lehrstuhl für Multimedia und Maschinelles Sehen
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik