Acoustic waveguides Waveguides 3 Absorption and reflections 1 Acoustic fields 1 Acoustic impedance 1 Acoustic sources 1 Acoustics 1 Asymmetric scattering 1 Audio acoustics 1 Audio frequencies 1 Coupling efficiency 1 Current sensing 1 Damped oscillators 1 Demultiplexers 1 Demultiplexing 1 Effective impedance 1 Elastic waves 1 Equipment Design 1 Fano resonances 1 Finite element method 1 Finite element numerical models 1 Fully integrated 1 High sensitivity 1 Impulse response 1 Materials Testing 1 Model frequencies 1 Non destructive 1 Numerical models 1 Point scatterers 1 Quartz 1