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Convention Paper Open Access

Sparse Audio Inpainting: A Dictionary Learning Technique to Improve Its Performance

Authors: Tauboeck, Georg; Rajbamshi, Shristi; Balazs, Peter

AES Convention 149 · Paper 10402 · October 2020

Abstract

The objective of audio inpainting is to fill a gap in a signal, either to be meaningful or even to reconstruct the original signal. We propose a novel approach applying sparse modeling in the time-frequency (TF) domain. In particular, we develop a dictionary learning technique which deforms a given Gabor frame such that the sparsity of the analysis coefficients of the resulting frame is maximized. A suitable modification of the SParse Audio Inpainter (SPAIN) allows to exploit the obtained sparsity gain and, hence, to benefit from the learned dictionary. Our experiments demonstrate that our methods outperforms several state-of-the-art audio inpainting techniques in terms of signal-to-noise ratio (SNR) and objective difference grade (ODG).

Details

Published in
AES Convention 149
AES Convention
149
Paper number
10402
Publication date
October 6, 2020
Session subject
Audio Processing
Affiliation
Acoustics Research Institute, Austrian Academy of Sciences, Vienna, Austria (See document for exact affiliation information.)
Type
Convention Paper