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A Laser Triangulation Approach for Optical Audio Reconstruction of Phonograph Records
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This thesis introduces a method for contact-free optical audio reconstruction of phonograph records using laser triangulation. The reconstruction is done using a 3D-profile camera and by scanning the surface of record in a single circumference. The depth-map created by the camera is then used to decode the audio information stored in the record. To evaluate the quality of the decoded audio information, it is tested against digital copies of the same record in order to analyze the correlation between it and the extracted sound. The result of this thesis presents a decoded and high correlated audio which is recognizable to an original digital copy. The method is well suited for fast real-time or faster than real-time decoding implementations.

Place, publisher, year, edition, pages
2016. , p. 77
Keywords [en]
Audio, optic, reconstruction, laser, triangulation, decode
National Category
Media and Communication Technology
Identifiers
URN: urn:nbn:se:liu:diva-133207ISRN: LiU-ITN-TEK-A-16/044--SEOAI: oai:DiVA.org:liu-133207DiVA, id: diva2:1056370
Subject / course
Media Technology
Uppsok
Technology
Supervisors
Examiners
Available from: 2016-12-14 Created: 2016-12-14 Last updated: 2018-01-13Bibliographically approved

Open Access in DiVA

Laser Triangulation Approach for Optical Audio Reconstruction of Phonograph Records(3893 kB)135 downloads
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf