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<p class="MsoNormal">Please take note of Colloquium taking place today, Tuesday, March 4, 2014 at 4:00 PM in The Robert Smith Seminar Room. There will be a reception in the Atrium at 3:45PM. Details concerning the talk are as follows:
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Speaker: Carl Haber (Lawrence Berkeley National Laboratory)<o:p></o:p></p>
<p class="MsoNormal">Date: Tuesday, March 4, 2014<o:p></o:p></p>
<p class="MsoNormal">Time: 4:00 PM<o:p></o:p></p>
<p class="MsoNormal">Place: 1080 Physics Research Building, The Robert Smith Seminar Room<o:p></o:p></p>
<p class="MsoNormal"><b>Title: </b><b><span lang="EN">Seeing Voices: Optical Scanning Applied to Early Recorded Sound Preservation</span></b><span lang="EN"><o:p></o:p></span></p>
<p><span lang="EN" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Abstract:
</span><span lang="EN" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Sound was first recorded and reproduced by Thomas Edison in 1877. Until about 1950, when magnetic tape use became common, most recordings were made on mechanical
media such as wax, foil, shellac, lacquer, and plastic. Some of these older recordings contain material of great historical interest, may be in obsolete formats, and are damaged, decaying, or are now considered too delicate to play. Unlike print and latent
image scanning, the playback of mechanical sound carriers has been an inherently invasive process. Recently, a series of techniques, based upon non-contact optical metrology and image processing, have been applied to create and analyze high resolution digital
surface profiles of these materials. Numerical methods may be used to emulate the stylus motion through such a profile in order to reconstruct the recorded sound. This approach, and current results, including studies of some of the earliest known sound recordings,
are the focus of this talk and will be illustrated with sounds and images.<o:p></o:p></span></p>
<p class="MsoNormal">The website for the colloquium is <a href="https://physics.osu.edu/physics-colloquium-schedule">
<span style="color:windowtext">https://physics.osu.edu/physics-colloquium-schedule</span></a>.<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">Martina Gutik<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">The Ohio State University<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">1040 Physics Research Building<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">191 West Woodruff Avenue<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">Columbus, Ohio 43210-1117<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">Phone: 614-292-6083
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="color:black">E-mail
<a href="mailto:gutik.1@osu.edu">gutik.1@osu.edu</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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