Chris Albertson wrote:
Adding time code to video would be redundant. All video is already time coded.
All *digital* video is timecoded..
Record that video on an analog 1/2" or 3/4" deck and you need the
timecode on the longitudinal audio track. Yes, primarily as you say, to
support editing.
It's been 12 years since I sat in an edit bay, so I'll bet that analog
gear is pretty much out of the picture by now, though.
But many consumer level cameras "fake" it by defining time = zero at
the start of a
tape or the first frame in memory. If absolute time needs to be record on a
consumer level camera then I'd shoot a few frames of a digital clock and then
later in a video editor adjust the time code
That would work..(e.g. it's just like slating at the beginning of a film
take) Sometimes it would be more convenient to just record an audio
timecode on the audio track.
Where I could see timecode being handy is when you're trying to do
automated processing. I worked on a system 15 years ago where we had
100 cameras, and we did the alignment by hand, and it was pretty
painful. What's easy when syncing A and B roll gets tedious when
there's 100 takes you're essentially cutting together.
I think there's also a lot of utility in figuring a way to do it in the
"consumer electronics" space. Say I was doing a radio interferometer
kind of experiment and just wanted to do a poor man's VLBI, using a
GPSDO at each station for time sync.
OK, all that said there is a group of people who routinely record WWV
audio on their
video. Amateur occultation timers do this. These people use video
cameras through
telescopes to record when a asteroid passes in front of a star and
blocks its light.
This can produce very acuate orbital data for the asteroid and if enough people
all over the world record it you can even deduce the shape of the asteroid.
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