Re: "Extract LTC from audio and align video" menu option missing from "Transcode/Import Video file" popup
"Chris Caudle" <[email protected]>
| Newsgroups | gmane.comp.audio.ardour.user |
|---|---|
| Message-ID | <[email protected]> |
On Mon, April 2, 2018 9:25 pm, robertlazarski . wrote: > The F8 is my single timecode generator source. I do not have a nice camera > like RED, that has a BNC input for timecode. So I am recording LTC on the > phone camera CH1 of its stereo track. OK, good, you already have a single time code source so that eliminates one problem (free running time sourced drifting relative to one another). > I was seeing that "00:00:01.00" start time of the MP4 LTC but didn't know > what it meant. That was the default of the F8. That was a clue, so I > changed it to RTC and now I see "time of day" timestamps in the LTC, but I > am still not syncing correctly as I am a few seconds off. The default might be OK, just depends on whether you need to know the actual time it was recorded or if you might have a full day worth of recordings to go through. Setting to actual (wall clock) time could have the disadvantage that Robin pointed out, if you import directly into Ardour you may end up with a project with 12 or 15 hours of blank space at the beginning. I had to find the manual for the R8, it seems to have several options for timecode settings. Internal free run vs. internal record run is one, when set to record run there could be some delay in starting up the time code generator when you start recording. Not for sure, just something to verify. Should not be an issue when set to internal RTC run according to the manual description. Is internal auto mute set to on or off? That mutes timecode output when recording is stopped, that could be another place that there is an indeterminate delay when going from off to on. It might be useful to use a clapboard or similar to give you an easy to find location in the audio and video to check whether the "few seconds off" value is always the same or whether it changes from start to start. -- Chris Caudle _______________________________________________ Ardour-Users mailing list [email protected] To unsubscribe or change your mailing preferences please visit: http://lists.ardour.org/listinfo.cgi/ardour-users-ardour.org