23 Dec
2006
23 Dec
'06
12:12 p.m.
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what do you think ardour is going to do with timecode
during
recording?
use it as offset.
I was interested in having a tool that reads the first [LTC]SMPTE from a
[analog] recording and use it as offset for the audio file that is
recorded along with. At the end I would only be interested in the
drift+jitter information (no varispeed).
In my experience that this is good enough for A/V sync (even to
sync snare hits on a music video!)
i just want to make sure that you're not thinking
you could slave to
it.
ack!
if you want video/audio sync during recording, you
need to use
blackburst [..] or some equivalent to provide a but most people
don't have the equipment for this.
I would not recommend to use LTC, but It seems to be good enough for
most [low budget] video productions!
I've started to write a simple parser (counting the zero crossing from
the signal and decode the Manchester). It seems that Maarten's code
(level Threshold) works better and even more so if combined with some
band pass filter..
I've got a jack app that reads LTC and am working on libltcsmpte to both
read and write LTC time code; but it's going to take until 2007.
merry X-mas,
robin
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