This study explores the extent to which listeners are sensitive to variations in context when listening to Mandarin tones. Specifically, the effects of speaker F0 and speaking rate are evaluated on the perception of a Tone 2-Tone 3 continuum that varied either along a spectral parameter, a temporal parameter, or both. In addition, two groups of listeners were tested, Chinese and American. Resul...

Considerations associated with inversion of hi-static reverberation and scattering data from a three dimensional space are discussed. The Scattering and Reverberation from the Bottom (SCARAB) acoustic propagation and scattering model has been the kernel for the study. This model considers three dimensional, non-plme wave, range independent acoustic signals in botb mono and hi-static source rece...

Acoustic performance for an interior requires an accurate description of the boundary materials' surface acoustic impedance. Analytical methods may be applied to a small class of test geometries, but inverse numerical methods provide greater flexibility. The parameter estimation problem requires minimizing prediction vice observed acoustic field pressure. The Bayesian-network sampling approach ...

with the aim of identifying failure mechanism in oriented strand boards, failure behavior of wood strands under tensile load was investigated using acoustic emission technique. resinated and unresinated strands were arranged at top, middle and bottom section of the board before pressing. tensile and acoustic emission tests were performed simultaneously on treated and control samples. using tens...