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Late Reverberant Spectral Variance Estimation for Single-Channel Dereverberation Using Adaptive Parameter Estimator
- Source :
- Applied Sciences, Vol 11, Iss 8054, p 8054 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- The estimation of the late reverberant spectral variance (LRSV) is of paramount importance in most reverberation suppression algorithms. This letter proposes an improved single-channel LRSV estimator based on Habets LRSV estimator by using an adaptive parameter estimator. Instead of estimating the direct-to-reverberation ratio (DRR), the proposed LRSV estimator directly estimates the parameter κ in a generalized statistical model since the experimental results show that even the κ calculated using measured ground truth DRR may not be the optimal parameter for the LRSV estimator. Experimental results using synthetic reverberant signals demonstrate the superiority of the proposed estimator to conventional approaches.
- Subjects :
- Reverberation
Technology
Channel (digital image)
QH301-705.5
QC1-999
probability-based
Variance estimation
General Materials Science
Biology (General)
Instrumentation
dereverberation
QD1-999
Mathematics
Fluid Flow and Transfer Processes
Ground truth
single-channel
Process Chemistry and Technology
Physics
General Engineering
Estimator
Statistical model
Variance (accounting)
Engineering (General). Civil engineering (General)
Computer Science Applications
Chemistry
TA1-2040
Algorithm
Subjects
Details
- Language :
- English
- ISSN :
- 20763417
- Volume :
- 11
- Issue :
- 8054
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....837b8640a2a88120d5d4911f6e2cc65d