[IPOL announce] new article: Automatic Detection and Removal of Impulsive Noise in Audio Signals

[announcements about the IPOL journal]

A new article is available in IPOL: http://www.ipol.im/pub/art/2015/64/

Laurent Oudre,
Automatic Detection and Removal of Impulsive Noise in Audio Signals,
Image Processing On Line, 5 (2015), pp. 267–281.
http://dx.doi.org/10.5201/ipol.2015.64

Abstract
This article presents a method for restoring audio signals corrupted by 
impulsive noise such as clicks, bursts or scratches. The algorithm takes 
as input a degraded audio signal and automatically detects the locations 
of the degraded samples and replaces them with more appropriate values. 
Both steps (detection and interpolation) are based on the assumption 
that the signal can locally be modeled as a realization of an 
autoregressive process. Surprisingly, the results obtained on several 
types of signals (classical, jazz, vocal, etc.) show that a fully 
automatic method, with a carefully fixed set of parameters, can achieve 
good performance on a wide range of degraded audio signals.


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