Title :
Live demonstration: Real-time audio restoration using sparse signal recovery
Author :
Bellasi, David ; Maechler, Patrick ; Burg, Andreas ; Felber, Norbert ; Kaeslin, Hubert ; Studer, Christoph
Author_Institution :
ETH Zurich, Zurich, Switzerland
Abstract :
We demonstrate the restoration of audio signals corrupted by clicks and pops using techniques from sparse signal recovery and compressive sensing. The demonstration features real-time signal restoration using the approximate message passing algorithm on an FPGA prototyping board. To highlight the restoration performance of our implementation, we remove clicks and pops from old phonograph recordings in real time.
Keywords :
approximation theory; audio signal processing; field programmable gate arrays; signal reconstruction; signal restoration; FPGA prototyping board; approximate message passing algorithm; compressive sensing; phonograph recordings; real-time audio signal restoration; real-time signal restoration; sparse signal recovery; Approximation algorithms; Compressed sensing; Field programmable gate arrays; Image restoration; Real-time systems; Signal processing algorithms; Signal restoration;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571929