Acoustic transmission across the water/sediment interface

A Transmission Problem Across a Fractal Self-Similar Interface

We consider a transmission problem in which the interior domain has infinitely ramified structures. Transmission between the interior and exterior domains occurs only at the fractal component of the interface between the interior and exterior domains. We also consider the sequence of the transmission problems in which the interior domain is obtained by stopping the self-similar construction aft...

Investigation on acoustic behavior of acoustic porous absorbers to ‎absorb sound energy and transmission loss index

In this study, the acoustic properties of porous absorbents with different porosity levels have been evaluated using different mathematical models. These models use one or more parameters of materials for calculating acoustic characteristics. In all of these models, materials are considered as equivalent fluid and reactionary characteristics have not been taken into account.

An Acoustic Study of Emotivity-Prosody Interface in Persian Speech Using the Tilt Model

This paper aims to explore some acoustic properties (i.e. duration and pitch amplitude of speech) associated with three different emotions: anger, sadness and joy against neutrality as a reference point, all being intentionally expressed by six Persian speakers. The primary purpose of this study is to find out if there is any correspondence between the given emotions and prosody patterning in P...

Effects of second sound on acoustic transmission at the solid-liquid 4He interface.

Tangible Acoustic Interface Approaches

This paper describes two acoustic impact localization techniques for tangible interface applications. A rising-edge detection method was used for the time delay of arrival (TDOA) approach and a cross correlation analysis for the location template matching (LTM) approach. These methods were experimentally investigated using tangible objects of different materials with different types of acoustic...