I have already heard a sound file generated by image processing. Don't
remember where it was, but I think it was someone here in Israel.
Sounded horrible but it proved the possibility. Kind of like the Mark 1
On 3/14/2010 7:53 AM, Michael Biel wrote:
> Alex Hartov wrote:
>> Make high resolution images of all the pieces. Use light at
>> ~45degree incidence from two side ( two separate pictures). I am
>> sure it will be possible to revive the music from that.
>> If you want I'll make it a project to recover the sound from the
>> pictures. I teach a class in image processing.
>> Alex Hartov
> I hope it works. I must make a comment here because I have been
> preaching about the possibility of playing phoyographs of records for
> 40 years. I realized around 1970 as I took photos of journal pages
> and paper files to use as microfilm as a replacement for notetaking
> while researching for my PhD. dissertation that it was great that I
> could capture the page in an instant and read it later but when I took
> pictures of records I could only read the label info, not hear it. No
> instant capturing of the sound. Dubs had to be real-time. But I was
> sure that if the pictures could be taken so that the record was evenly
> lit -- like using a ring light around the lens -- and not have wedges
> of light, the sound could probably *someday* be played.
> When the design for the photographic system for the Rigler Deutsch
> Record Index was being developed I pleaded with them to light the
> discs evenly. But their ONLY concern was legibility of the label and
> the matrix number markings. But there are now unplayable photographs
> of 700,000 78s in the RDRI films. (For those who do not know, the
> records were photographed and the data entered into the computer from
> the films. Instead of the records being moved to the computer in
> those days of the mainframe, the special camera came to the archuve.)
> Mike Biel [log in to unmask]