Augmenting Room Acoustics and System Interaction for Intentional Control of Audio Feedback
Seung Hun Kim, Graham Wakefield, Ju Han Nam · University of Michigan Library Repository · 2015
This paper presents the interactive enhancement of audio feedback through context-based control, leading to the generation of desired sonic behaviors by augmenting the effects of physical space in the feedback sound.Our prototype maps approximations of room reverberation to tempo-scale characteristics of the audio feedback.These characteristics are generated by a combination of adaptive amplification control and a digital variable delay line in the feedback loop.Room reverberation is inferred from the feedback sound by real-time cross-correlation of input with output signals, which is used to guide the variable delay line.This variation, coupled with an adaptive gain control, determines room-dependent tempo effects.