scholarly journals Usefulness of Cepstral Acoustic Index for Estimating Objective Dysphonia Severity

2017 ◽  
Vol 22 (3) ◽  
pp. 587-596 ◽  
Author(s):  
Miok Yu ◽  
Seong Hee Choi ◽  
Chul-Hee Choi ◽  
Kyungjae Lee
Keyword(s):  
Acoustic Index

Negative acoustic index metamaterial

2011 ◽  
Vol 83 (21) ◽  
Author(s):  
L. Fok ◽  
X. Zhang
Keyword(s):  
Acoustic Index

Quantifying dysphonia severity using a spectral/cepstral-based acoustic index: Comparisons with auditory-perceptual judgements from the CAPE-V

2010 ◽  
Vol 24 (9) ◽  
pp. 742-758 ◽  
Author(s):  
Shaheen N. Awan ◽  
Nelson Roy ◽  
Marie E. Jetté ◽  
Geoffrey S. Meltzner ◽  
Robert E. Hillman
Keyword(s):  
Acoustic Index

Acoustic index of Ge-doped optical fibers

2009 ◽  
Vol 34 (23) ◽  
pp. 3689 ◽  
Author(s):  
Søren Herstrøm ◽  
Lars Grüner-Nielsen ◽  
Bera Pálsdóttir
Keyword(s):  
Optical Fibers ◽  
Acoustic Index

Indicator variables for a robust estimation of an acoustic index of abundance

2014 ◽  
Vol 71 (5) ◽  
pp. 709-718 ◽  
Author(s):  
Nicolas Bez ◽  
Cheikh-Baye Braham
Keyword(s):  
Acoustic Energy ◽  
Assessment Procedure ◽  
North West ◽  
Geostatistical Approach ◽  
Indicator Variables ◽  
Central Atlantic ◽  
Index Of Abundance ◽  
Kriging Maps ◽  
Pelagic Fisheries ◽  
Acoustic Index

In North West Africa, pelagic fisheries are an essential economic sector. However, the scientific community fails to perform satisfactory assessments of key pelagic species like sardinella, owing to a lack of relevant indices of abundance to tune the model. This paper provides an alternative acoustic index based on a semiquantitative modelisation of acoustic densities. Acoustic energy is split into binomial variables coding for null, low, medium, large, and very large densities. A multivariate geostatistical approach allows (i) mapping the spatial distribution of classes of densities and (ii) computing a new acoustic index of abundance for Sardinella aurita and Sardinella maderensis. We used the surveys of RV Fridtjof Nansen (1995–2006) and RV Al-Awam (2007–2010). Our results indicated that empirical spatial structures were highly stable over time for both between areas and surveys. Co-kriging maps also showed that sardinella had stable hot spots of distribution. The indices of abundance developed in the present study were tested in an assessment procedure and outperformed all the indices used routinely by the FAO–CECAF (Fishery Committee for the Eastern Central Atlantic) assessment working group.

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