[QuadList] What Would a Newly Designed Quad VTR Do and Have? Reply by 6/15/2012- (Was Ampex Quad VTR Airflow Requirements)

[C. Park Seward]

I have seen laser techniques reading phonograph records but nothing like that for magnetic tape including audio.

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?

Best,
Park

C. Park Seward
Cell: 818-535-2747
Home: 541-476-6657
2" Quad and 1" "C" transfers
The Transfer Lab at Video Park
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On Jun 3, 2012, at 4:39 PM, Scott Thomas wrote:

> 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?
> 
> 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.
> 
> 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. :)
> 
> Scott Thomas
> 
> 
> On Jun 3, 2012, at 6:11 PM, Grace McKay wrote:
> 
>> It should also be progressive, and the output would be data at whatever resolution desired...
>> 
>> Grace McKay
>> 
>> 
>> 
>> On 6/3/2012 3:01 PM, lee williams wrote:
>>> 
>>> 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.
>>>  
>>> 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.
>>>  
>>> 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.
>>>  
>>> RCA, AMPEX, IVC, BOSCH, NASA, all could be reduced to a algorithm and loss of control track or superficial tape damage could be overlooked.
>>>  
>>> It would in effect become the universal translator of 2" with no moving head parts to wear out.
>>>  
>>>  
>>> 
> 
> Please trim posts to relevant info when replying.
> 
> Change subject to reflect thread direction. Thanks.
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