The issue of the recording stylus apparently moving backward along the time
axis shouldn't be a mystery to anyone who remembers the old Brush (brand
name) galvanic chart recorders. The pen tip moved in an arc rather than
rectilinear and for slow paper movement the graph appeared to move backward
in time. I have no idea exactly how virtual stylus works in decoding these
recordings but it seems possible that they could account for the recording
stylus being moved in an arc rather than a straight line.
Regards.
Max. K 4 O DS.
Email: m...@maxsmusicplace.com
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----- Original Message -----
From: "Bob Burchett" <bob.burch...@eeontheweb.com>
To: <time-nuts@febo.com>
Sent: Sunday, August 10, 2014 5:39 PM
Subject: [time-nuts] Worlds first time code generator and ultimate decoder
This is just for fun guys; so don't take it over seriously however that
said; this is indeed the first recorded use of timing for synchronization
so
far as I can find.and it ties in with my other hobby; vintage/ antique
phonographs. I think you will enjoy it as much as I did.so read on:
Most everyone knows about Edison in 1877 patenting the recording of audio
but fully 17 years prior to that Scott in Paris France patented the
Phonautogram which was finally proven in 2008 to be the oldest recorded
sound ever when it was finally decoded. It was done by speaking into the
Phonautogram device Scott & Koenig built to put voice squiggles of audio
lines onto paper coated with lampblack which he did as far back as 1853
but
those can't be decoded for multiple reasons; like the fact Scott wasn't
really interested in playing them back so some of the recordings actually
backtracked on paper in time which violates the rules a bit so only the
later ones can be reverse-engineered.
So what made the one of 1860 work? This is the good part!
It took the researchers quite some time to figure out that in parallel
with
the voice squiggle was a perfect sine wave that was ultimately determined
to
be a musical tuning fork on "then standard" A of 435 Hz. Yes we all know
440
became the standard later but at that time an A was at 435 before you hit
REPLY and toss things at me..
Anyway; Scott vibrated a fork squiggle along with the voice pattern and
the
first time code for synchronization was created in 1860 which can be seen
here:
http://nesssoftware.com/home/asn/homepage/teaching/exp-lectureNotes/110127-p
honautograph/phonautograph_rev.html note you have to scroll about halfway
down the page to get to the image of the voice paper but it is sure worth
it
now that you know what to look for.
Note that you can actually HEAR the end results of this squiggle-on-paper
which Scott was only able to encode but never decode and I got to hear it
at
the Antique Phonograph Society back then..relived today and well
documented
in this large PDF that is really cool to view:
http://www.firstsounds.org/publications/facsimiles/FirstSounds_Facsimile_05.
pdf
For those that really want to hear MP3 renditions of this miracle go here:
http://firstsounds.org/sounds/scott.php and step back 154 years in time to
the first recorded and frequency/ time-synchronized recordings made..enjoy
as it is intended or just hit <Delete> if you think there are faults in
this!
Robert L. (Bob) Burchett
Certified Communications Engineer
Enterprise Electronics
Contractors License 522372
22826 Mariposa Ave.
Torrance CA 90502
310.534.4456
bob.burch...@eeontheweb.com
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