Index for 4aSP

• 4aSP1. An application of laser-based ultrasonic nondestructive evaluation using a fiber-optics-based Fabry--Perot interferometer.
• 4aSP2. On-line measurement of error-path impulse response for an adaptive ANR headset.
• 4aSP3. Experiments on bit-rate reduction for orthophony signals.
• 4aSP4. Voiced excitation functions calculated from micropower impulse radar information.
• 4aSP5. Comparison of conventional acoustic and MIR radar/acoustic processing of speech signals.
• 4aSP6. Measurements of normal incidence surface impedance using the single transfer function method with multitone periodic random noise signal.
• 4aSP7. Plane wave reflection coefficient estimation by use of spatial parametric signal modeling.