Acoustic behavior of a vibration‐sensitive frog

Modeling and simulation of the acoustic behavior of a muffler in a passenger car exhaust system

Muffler is one of the main components of an automotive exhaust system, which reduces the noise of the exhaust system. In this paper, modeling and simulation of the acoustic behavior of a muffler is presented with the aid of  an engineering software. For this purpose, firstly, an analytical model is presented to evaluate the sound transmission loss in cylindrical shells based on Sander's theory....

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.

Acoustic Behavior and Midbrain Function

Agonistic Behavior and Acoustic Communication

Sounds are uttered in agonistic contexts by representatives of 30+ families of fishes but this number mainly reflects the scientific expenditure and less so the actual distribution of soundproducing families. Sounds are emitted in numerous contexts: distressful or disturbancesituations, e.g. being attacked or grabbed by predators, competitive feeding, and competition for space and sometimes mat...

Divergence of Acoustic Signals in a Widely Distributed Frog: Relevance of Inter-Male Interactions

Divergence of acoustic signals in a geographic scale results from diverse evolutionary forces acting in parallel and affecting directly inter-male vocal interactions among disjunct populations. Pleurodema thaul is a frog having an extensive latitudinal distribution in Chile along which males' advertisement calls exhibit an important variation. Using the playback paradigm we studied the evoked v...