Live Convolution with Time-Varying Filters

The paper presents two new approaches to artefact-free real-time updates of the impulse response in convolution. Both approaches are based on incremental updates of the filter. This can be useful for several applications within digital audio processing: parametrisation of convolution reverbs, dynami...

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Bibliographic Details
Published in:Applied sciences 2018-01, Vol.8 (1), p.103
Main Authors: Brandtsegg, Øyvind, Saue, Sigurd, Lazzarini, Victor
Format: Article
Language:English
Subjects:
audio effect
CD burners
Convolution
cross synthesis
Filters
Impulse response
live processing
morphing
Motivation
Music
Research projects
reverberation
Scholarships & fellowships
Sound filters
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Summary:The paper presents two new approaches to artefact-free real-time updates of the impulse response in convolution. Both approaches are based on incremental updates of the filter. This can be useful for several applications within digital audio processing: parametrisation of convolution reverbs, dynamic filters, and live convolution. The development of these techniques has been done within the framework of a research project on crossadaptive audio processing methods for live performance. Our main motivation has thus been live convolution, where the signals from two music performers are convolved with each other, allowing the musicians to “play through each other’s sound”.
ISSN:2076-3417
2076-3417
DOI:10.3390/app8010103