A Proper version of Synthesis-based Sparse Audio Declipper

Autor: Záviška, Pavel, Rajmic, Pavel, Mokrý, Ondřej, Průša, Zdeněk
Rok vydání: 2018
Předmět:
Zdroj: ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brighton, United Kingdom, 2019, pp. 591-595
Druh dokumentu: Working Paper
DOI: 10.1109/ICASSP.2019.8682348
Popis: Methods based on sparse representation have found great use in the recovery of audio signals degraded by clipping. The state of the art in declipping has been achieved by the SPADE algorithm by Kiti\'c et. al. (LVA/ICA2015). Our recent study (LVA/ICA2018) has shown that although the original S-SPADE can be improved such that it converges significantly faster than the A-SPADE, the restoration quality is significantly worse. In the present paper, we propose a new version of S-SPADE. Experiments show that the novel version of S-SPADE outperforms its old version in terms of restoration quality, and that it is comparable with the A-SPADE while being even slightly faster than A-SPADE.
Databáze: arXiv