AI Article Synopsis
- Scientists studied the vocal membranes in animals like bats and monkeys to see how they help them make sounds.
- They created a model to test if these membranes make it easier to produce vocal sounds by needing less pressure.
- The experiments showed that the model with vocal membranes needed less pressure and had some wild sound patterns too!
Article Abstract
The vocal membrane, i.e., an extended part of the vocal fold, is observed in a wide range of species including bats and primates. A theoretical study [Mergell, Fitch, and Herzel (1999). J. Acoust. Soc. Am. 105(3), 2020-2028] predicted that the vocal membranes can make the animal vocalizations more efficient by lowering the phonation threshold pressure. To examine this prediction, a synthetic model of the vocal membrane was developed, and its oscillation properties were examined. The experiments revealed that the phonation threshold pressure was lower in the vocal membrane model compared to that in a model with no vocal membrane. Chaotic oscillations were observed as well.
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| http://dx.doi.org/10.1121/10.0015071 | DOI Listing |
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