<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I have seen laser techniques reading phonograph records but nothing like that for magnetic tape including audio.<div><br></div><div>How would you untangle the magnetic response of one head reading multiple scans at the same time? And at what speed? If you ran the machine at 15 ips and tried to read the tracks, wouldn't the frequency of the RF tracks be too low?<br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div><div><br class="Apple-interchange-newline">Best,</div><div>Park</div><div><br></div></div><div>C. Park Seward</div><div>Cell: 818-535-2747</div><div>Home: 541-476-6657</div><div>2" Quad and 1" "C" transfers</div><div>The Transfer Lab at Video Park</div><div>Visit us: <a href="http://www.videopark.com">http://www.videopark.com</a></div></span></div></span></div></span></span><br class="Apple-interchange-newline"></div></span></div></span></span><br class="Apple-interchange-newline">
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<br><div><div>On Jun 3, 2012, at 4:39 PM, Scott Thomas wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>I had wondered if a scanning technique would work. They are able to scan wax cylinders and then reconstruct the sound information, why not magnetic tape?</div><div><br></div><div>My idea would be a scanner not too unlike the quad acanner. It would need only one head and could work on the tape in a slower than real-time rate.</div><div><br></div><div>I think the software to reconstruct an image would probably be a massive challenge and the amount of raw data that would be collected in the scanning process would fill a datacenter, but what do I know. Might be easer to just build a new quad machine. :)</div><div><br></div><div>Scott Thomas</div><div><br></div><br><div><div>On Jun 3, 2012, at 6:11 PM, Grace McKay wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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It should also be progressive, and the output would be data at
whatever resolution desired...<br>
<br>
Grace McKay<br>
<br>
<br>
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On 6/3/2012 3:01 PM, lee williams wrote:
<blockquote cite="mid:1338760867.19686.YahooMailNeo@web162901.mail.bf1.yahoo.com" type="cite">
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<div style="RIGHT: auto"><span style="RIGHT: auto">If somebody
was going to redesign a new Quad (2") machine then I would
recommend that they borrow some of the latest technology
used in film and create a 2" tape scanner. </span></div>
<div style="RIGHT: auto"><span style="RIGHT: auto"></span> </div>
<div style="RIGHT: auto"><span style="RIGHT: auto">Create a 2"
wide fixed magnetic head that would pick up the raw magnetic
image directly off the tape and store it as a set of digital
strings. </span></div>
<div style="RIGHT: auto"><span style="RIGHT: auto"></span> </div>
<div style="RIGHT: auto"><span style="RIGHT: auto">Now all you
need to do is write a program that can recognize and
re-assemble the different signatures of the formats and spit
out a video image. </span></div>
<div><span style="RIGHT: auto"></span> </div>
<div style="RIGHT: auto"><span style="RIGHT: auto">RCA, <span id="misspell-0" class="mark">AMPEX<var id="yui-ie-cursor"></var></span>,
<span id="misspell-1" class="mark">IVC</span>, BOSCH, NASA,
all could be reduced to a <span style="RIGHT: auto" id="misspell-2"><span>algorithm</span></span> and loss of
control track or superficial tape damage could be
overlooked. </span></div>
<div style="RIGHT: auto"><span style="RIGHT: auto"></span> </div>
<div style="RIGHT: auto"><span style="RIGHT: auto">It would in
effect become the universal translator of 2" with no moving
head parts to wear out. </span></div>
<div style="RIGHT: auto"><span style="RIGHT: auto"></span> </div>
<div style="RIGHT: auto"><span style="RIGHT: auto"></span> </div></div>
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</blockquote></div></blockquote></div><br></div>
Please trim posts to relevant info when replying.<br><br>Change subject to reflect thread direction. Thanks.<br>_______________________________________________<br><br>Send QuadList list posts to <a href="mailto:QuadList@quadvideotapegroup.com">QuadList@quadvideotapegroup.com</a><br>Your subscribe, unsubscribe and digest options are here:<br><a href="http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegroup.com">http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegroup.com</a></blockquote></div><br></div></body></html>