Modeling and frequency tracking of marine mammal whistle calls
Thesis (S.M.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2009.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2009
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| Online Access: | http://hdl.handle.net/1721.1/47340 |
| _version_ | 1826188359582613504 |
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| author | Severson, Jared |
| author2 | James C. Preisig. |
| author_facet | James C. Preisig. Severson, Jared |
| author_sort | Severson, Jared |
| collection | MIT |
| description | Thesis (S.M.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2009. |
| first_indexed | 2024-09-23T07:58:27Z |
| format | Thesis |
| id | mit-1721.1/47340 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T07:58:27Z |
| publishDate | 2009 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/473402019-04-09T15:51:48Z Modeling and frequency tracking of marine mammal whistle calls Severson, Jared James C. Preisig. Woods Hole Oceanographic Institution. Joint Program in Oceanography/Applied Ocean Science and Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Woods Hole Oceanographic Institution. /Woods Hole Oceanographic Engineering. Joint Program in Oceanography/Applied Ocean Science and Engineering. Mechanical Engineering. Woods Hole Oceanographic Institution. Underwater acoustics Marine mammals Thesis (S.M.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and the Woods Hole Oceanographic Institution), 2009. Includes bibliographical references (p. 101-107). Marine mammal whistle calls present an attractive medium for covert underwater communications. High quality models of the whistle calls are needed in order to synthesize natural-sounding whistles with embedded information. Since the whistle calls are composed of frequency modulated harmonic tones, they are best modeled as a weighted superposition of harmonically related sinusoids. Previous research with bottlenose dolphin whistle calls has produced synthetic whistles that sound too "clean" for use in a covert communications system. Due to the sensitivity of the human auditory system, watermarking schemes that slightly modify the fundamental frequency contour have good potential for producing natural-sounding whistles embedded with retrievable watermarks. Structured total least squares is used with linear prediction analysis to track the time-varying fundamental frequency and harmonic amplitude contours throughout a whistle call. Simulation and experimental results demonstrate the capability to accurately model bottlenose dolphin whistle calls and retrieve embedded information from watermarked synthetic whistle calls. Different fundamental frequency watermarking schemes are proposed based on their ability to produce natural sounding synthetic whistles and yield suitable watermark detection and retrieval. by Jared Severson. S.M. 2009-10-01T14:59:54Z 2009-10-01T14:59:54Z 2009 2009 Thesis http://hdl.handle.net/1721.1/47340 300481977 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 107 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | /Woods Hole Oceanographic Engineering. Joint Program in Oceanography/Applied Ocean Science and Engineering. Mechanical Engineering. Woods Hole Oceanographic Institution. Underwater acoustics Marine mammals Severson, Jared Modeling and frequency tracking of marine mammal whistle calls |
| title | Modeling and frequency tracking of marine mammal whistle calls |
| title_full | Modeling and frequency tracking of marine mammal whistle calls |
| title_fullStr | Modeling and frequency tracking of marine mammal whistle calls |
| title_full_unstemmed | Modeling and frequency tracking of marine mammal whistle calls |
| title_short | Modeling and frequency tracking of marine mammal whistle calls |
| title_sort | modeling and frequency tracking of marine mammal whistle calls |
| topic | /Woods Hole Oceanographic Engineering. Joint Program in Oceanography/Applied Ocean Science and Engineering. Mechanical Engineering. Woods Hole Oceanographic Institution. Underwater acoustics Marine mammals |
| url | http://hdl.handle.net/1721.1/47340 |
| work_keys_str_mv | AT seversonjared modelingandfrequencytrackingofmarinemammalwhistlecalls |