Augmenting Environmental Interaction in Audio Feedback Systems

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Audio feedback is defined as a positive feedback of acoustic signals where an audio input and output form a loop, and may be utilized artistically. This article presents new context-based controls over audio feedback, leading to the generation of desired sonic behaviors by enriching the influence of existing acoustic information such as room response and ambient noise. This ecological approach to audio feedback emphasizes mutual sonic interaction between signal processing and the acoustic environment. Mappings from analyses of the received signal to signal-processing parameters are designed to emphasize this specificity as an aesthetic goal. Our feedback system presents four types of mappings: approximate analyses of room reverberation to tempo-scale characteristics, ambient noise to amplitude and two different approximations of resonances to timbre. These mappings are validated computationally and evaluated experimentally in different acoustic conditions.
Publisher
MDPI AG
Issue Date
2016-05
Language
English
Article Type
Article
Keywords

KARPLUS-STRONG ALGORITHM; DIGITAL WAVE-GUIDES; NOISE; MUSIC

Citation

APPLIED SCIENCES-BASEL, v.6, no.5

ISSN
2076-3417
DOI
10.3390/app6050125
URI
http://hdl.handle.net/10203/210187
Appears in Collection
GCT-Journal Papers(저널논문)
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