Technical Reports - Query Results
Your query term was 'number = 2012-07'1 report found
- OFAI-TR-2012-07 (
290kB PDF file)Persistent Empirical Wiener Estimation With Adaptive Threshold Selection For Audio Denoising
- Kai Siedenburg
- Exploiting the persistence properties of signals leads
to significant improvements in audio denoising. This
contribution derives a novel denoising operator based
on neighborhood smoothed, Wiener filter like shrinkage.
Relations to the sparse denoising approach via
thresholding are drawn. Further, a rationale for adapting
the threshold level to a performance criterion is
developed. Using a simple but efficient estimator of
the noise level, the introduced operators with adaptive
thresholds are demonstrated to act as attractive alternatives
to the state of the art in audio denoising.
Keywords: Audio denoising
- Exploiting the persistence properties of signals leads
to significant improvements in audio denoising. This
contribution derives a novel denoising operator based
on neighborhood smoothed, Wiener filter like shrinkage.
Relations to the sparse denoising approach via
thresholding are drawn. Further, a rationale for adapting
the threshold level to a performance criterion is
developed. Using a simple but efficient estimator of
the noise level, the introduced operators with adaptive
thresholds are demonstrated to act as attractive alternatives
to the state of the art in audio denoising.