Title
A note on the modified and mean-based steered-response power functionals for source localization in noisy and reverberant environments
Abstract
One of the most important applications of microphone arrays is the localization of one or multiple speakers in reverberant and/or noisy scenarios. The steered-response power (SRP) method, which searches for the maximum accumulated power by following a grid search procedure, is one of the leading algorithms for performing this task. However, the computational requirements of this algorithm are strongly increased when using many microphones or very fine spatial grids. The modified SRP (M-SRP) was proposed to tackle this problem, improving the performance of the original method when coarser spatial resolutions are considered. Recently, a mean-based variant of the M-SRP (MM-SRP) and an iterative search procedure were also introduced, allowing for higher accuracy with an additional reduction in the number of functional evaluations. This paper discusses further the differences among all these functionals, providing deeper insight into their motivation and performance in adverse acoustic environments.
Year
DOI
Venue
2014
10.1109/ISCCSP.2014.6877837
ISCCSP
Keywords
Field
DocType
iterative methods,microphone arrays,reverberation,search problems,m-srp,mm-srp,srp method,adverse acoustic environments,fine spatial grids,grid search procedure,iterative search procedure,leading algorithms,mean based steered response power functionals,mean based variant,modified srp,multiple speakers,noisy environments,reverberant environments,source localization,spatial resolutions,sound source localization,steered-response power
Hyperparameter optimization,Iterative search,Algorithm,Speech recognition,Source localization,Engineering,Microphone
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
1
Name
Order
Citations
PageRank
Cobos, M.100.68