[b] The MacArthur foundation has announced its annual "MacArthur Fellows" grants, which are no-strings attached fellowships (this year worth $625,000), to individuals " with a track record of achievement and the potential for even more significant contributions in the future."[/b] [b] One of this year's winners is Carl Haber, a physicist at the Lawrence Berkeley National Laboratory in Berkely, CA. Haber's work normally involves imaging of atomic particles for high-energy physics experiments. [/b] [b] When Carl heard how our cultural heritage of early sound recordings is being lost because the physical media is deteriorating: wax cylinders, lacquer discs, even pieces of tinfoil, he decided to apply his knowledge of optical metrology to create a method to "see" the recordings for playback without touching them at all. [/b] [b] Using a precision optical metrology system, Haber captures the precise contours of the original recording and then runs the images through software algorithms that clean and interpolate the images to compensate for physical damage, and re-interpret the image as if a needle were traveling through the grooves. The result is a standard digital audio file. [/b] [b] Since many optical metrology systems include horizontal or vertical rotary stages, it turned out to be an ideal method to stage fragile cylinders and discs for the image capture. You can see in the video how even broken records can again be "played" using this method. [/b] [b] This method has been able to reconstruct audio on fragile media for the first time. Watch the video and hear the only known recording of Alexander Graham Bell's voice, courtesy of Dr. Haber's method.[/b] [b] Congratulations to Dr. Haber on applying metrology techniques and tools to solve a non-metrology problem. Our only question is this: If you played back some of the normal parts we inspect on our [color=#417394][url=http://www.hexagonmetrology.us/index.php?option=com_content&view=article&id=567&Itemid=810]Optiv vision systems[/url][/color], what would they sound like? [/b] [fly]PC-DMIS User Forum[/fly]

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