Applied Physicist Robert G.W. Brown to Join American Institiute of Physics as CEO.
New Officers and Members of the Executive Council have been elected.
The Journal of the Acoustical Society of America (JASA) will publish a second special issue on Acoustic Metamaterials and is currently accepting manuscripts for a Special Issue entitled “Acoustic and Related Waves in Extraterrestrial Environments.”
Time-domain prediction models have been developed for auditorium reflectors and room acoustic diffusers. The models are time-domain equivalents of the single-frequency formulations that exploit the Kirchhoff boundary conditions. Consequently, they are approximate, wave-based solutions to the Kirchhoff...
This letter provides a theoretical extension to the elastic properties of polycrystals in order to describe elastic wave scattering from grain boundaries. The extension allows the longitudinal and shear attenuation coefficients for scattering to be derived and is valid for polycrystals containing crystallites of any symmetry class....
A characterization of the voice source (VS) signal by the pitch synchronous (PS) discrete cosine transform (DCT) is proposed. With the integrated linear prediction residual (ILPR) as the VS estimate, the PS DCT of the ILPR is evaluated as a feature vector for speaker identification (SID). On TIMIT and YOHO databases, using a Gaussian mixture model...
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