Robust speaker recognition by means of acoustic transmission channel matching: An acoustic parameter estimation approach

2016 ◽  
Author(s):  
Francis F. Li
Keyword(s):  
Parameter Estimation ◽  
Speaker Recognition ◽  
Acoustic Parameter ◽  
Transmission Channel ◽  
Acoustic Transmission ◽  
Robust Speaker Recognition

On the use of X-vectors for Robust Speaker Recognition

2018 ◽  
Author(s):  
Ondřej Novotný ◽  
Oldřich Plchot ◽  
Pavel Matějka ◽  
Ladislav Mošner ◽  
Ondřej Glembek
Keyword(s):  
Speaker Recognition ◽  
Robust Speaker Recognition

scholarly journals Sound Velocity Estimation of Seabed Sediment Based on Parametric Array Sonar

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Jingxin Ma ◽  
Haisen Li ◽  
Jianjun Zhu ◽  
Baowei Chen
Keyword(s):  
Parameter Estimation ◽  
Acoustic Parameter ◽  
Velocity Estimation ◽  
Parameters Estimation ◽  
Real Field ◽  
Sound Waves ◽  
Sediment Thickness ◽  
Seafloor Topography ◽  
Seabed Sediment ◽  
Seabed Sediments

Backscattered sound waves of seabed sediments are important information carriers in seafloor detection and acoustic characteristic parameters inversion. Most of the existing methods for estimating geoacoustic parameters are based on multiangle seabed backscattered signal processing and suitable for flat seafloor conditions with uniform sediment thickness. This usually deviates from the real field conditions and affects the accuracy of parameter estimation. In this paper, the sound ray propagation theory is studied and analysed under the condition of sloping seabed and uneven sediment thickness. Based on the phased parameter array sonar system, a method of acoustic parameters estimation of the sediment under inclined seabed conditions is proposed. The simulation results show that the new method shows good adaptability to different inclination angles of the seabed and solves the problem of accuracy of acoustic parameter estimation of the inclined seabed sediments. The model will greatly reduce the seafloor topography requirements in the sediment acoustic parameter inversion, such as velocity, layer thickness, and acoustic impedance.

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