The simulation of bat-oriented auditory processing using the experimental data of echolocating signals
The simulation of bat-oriented auditory processing using the experimental data of echolocating signals
There are various approaches to understanding the echolocation phenomenon of bats. A part of the echolocating process is assessed here by determining what acoustic signal a bat's ears receive during echolocation. It is simplified in an experimental rig to measure the reflections from objects in different horizontal angles which represents a sound localisation task in bats. It has been assumed in this study that the remarkable echolocating ability of bats, which is not shown in the most other mammalian species, is achieved by their different physical shape of head and ears, and specialised auditory processing of echolocating signals. In human studies in terms of sound localisation, physical characteristics are usually modelled as a head?related transfer function (or HRTF) and gammatone filter banks are widely used to simulate auditory processing in the cochlear. A modified filterbank is used here to represent the auditory processing in bats and combined with the experimental data of object reflections. Bat HRTFs will be used subsequently to determine the acoustic reflections at both ears.
5235-5240
Kim, Su Yeon
c1e529cf-40fb-4242-aea0-bb44989bd526
Allen, Robert
956a918f-278c-48ef-8e19-65aa463f199a
Rowan, Daniel
5a86eebe-53da-4cd2-953e-e3ca1ae61578
3 July 2008
Kim, Su Yeon
c1e529cf-40fb-4242-aea0-bb44989bd526
Allen, Robert
956a918f-278c-48ef-8e19-65aa463f199a
Rowan, Daniel
5a86eebe-53da-4cd2-953e-e3ca1ae61578
Kim, Su Yeon, Allen, Robert and Rowan, Daniel
(2008)
The simulation of bat-oriented auditory processing using the experimental data of echolocating signals.
Acoustics'08, Paris, Paris, France.
29 Jun - 04 Jul 2008.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
There are various approaches to understanding the echolocation phenomenon of bats. A part of the echolocating process is assessed here by determining what acoustic signal a bat's ears receive during echolocation. It is simplified in an experimental rig to measure the reflections from objects in different horizontal angles which represents a sound localisation task in bats. It has been assumed in this study that the remarkable echolocating ability of bats, which is not shown in the most other mammalian species, is achieved by their different physical shape of head and ears, and specialised auditory processing of echolocating signals. In human studies in terms of sound localisation, physical characteristics are usually modelled as a head?related transfer function (or HRTF) and gammatone filter banks are widely used to simulate auditory processing in the cochlear. A modified filterbank is used here to represent the auditory processing in bats and combined with the experimental data of object reflections. Bat HRTFs will be used subsequently to determine the acoustic reflections at both ears.
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e-pub ahead of print date: 2008
Published date: 3 July 2008
Additional Information:
Paper no. 2106
Venue - Dates:
Acoustics'08, Paris, Paris, France, 2008-06-29 - 2008-07-04
Identifiers
Local EPrints ID: 349417
URI: http://eprints.soton.ac.uk/id/eprint/349417
PURE UUID: e44ea062-030a-4583-9b43-24e8deb49605
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Date deposited: 06 Mar 2013 12:32
Last modified: 15 Mar 2024 03:14
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Author:
Su Yeon Kim
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