[Thaxter Clavemarlton]

[John Fishback] “Over an hour, sync will drift if you haven’t locked the devices together. “

I’ve shot hundreds hours of non-synced footage over the years.
Mini DV, DVCAM, Digibeta.

Multiple cameras, rolling totally independently, some on battery power, some on AC supplies.

Audio sourced and synced-up from a board recording on MD, CD, DAT.

I simply never have problems with “drift.”

I telling you, I do this ALL the time.

I just shot that way today.

I used 3 camcorders (a Sony, a Canon, a Panny) all rolling on the same stage play.

I can capture each tape, and then use multi-cam or simply lay each capture on a different video track.

They remain in sync for the entire roll (about 45-75 minutes, depending on what play I am recording.

I’m betting the presenting problem is in the CONVERSION of sample rates from the Audio station.

This should not be a problem, as otherwise, most “multi-cam” edits would be nearly impossible.

[Thaxter Clavemarlton]

In a pinch, just hit record on the deck and play the timeline.

[Thaxter Clavemarlton]

How are you monitoring the output?

[Thaxter Clavemarlton]

Did you actually record the audio on CH. 3 and CH. 4?

That would be very possible and easy if you shot on a Canon XL-1 or 2.
Also possible on other camcorders, but not quite as easy.)

As a clue to this, the audio mode would be showing as 32k, if that’s what you did.
(If audio is showing as 48k, CH. 3 and CH. 4 recording/playback is not possible.)

You can set your capture to CH. 3 and CH. 4 and see if that’s what happened.

[Thaxter Clavemarlton]

Trash the FCP Preferences.

[Thaxter Clavemarlton]

Strobe filter

[Thaxter Clavemarlton]

[John Smith] “‘m looking for a program that beep on explicit words that said on a live show

are there any?”

A person must do it manually.

If the show is being broadcast “live” there must be a delay of the audio and video to give
the person time to react.

[Thaxter Clavemarlton]

[John Livings] “Also if you Google “df vs. ndf” you will get the bottom line, And that is in about 1 hour the time codes will differ about 4 seconds (The actual amount of frames will be the same if the only difference is DF vs. NDF)
“

Yes, the time CODES differ (that’s why there are 2 systems,)
but the LENGTH does not change.

TC is just a numbering system.
It counts and identifies frames.
It does not affect length or speed.

[Thaxter Clavemarlton]

[John Livings] “DF vs. NDF settings”

TC settings have no affect on speed or timing.
TC is simply a frame-numbering system.

I have shot recording studio footage many times over the years.
Then manually connected audio and video footage.
I shoot recording sessions and build documentations of the sessions.

Each of the units (video camcorder and digital recording system) are each locked internally to their own dead-on-accurate “clocks.”
There should be no reason that a digital camcorder running at standard speed would slip even one frame in regard to a digital audio recording.
(UNLESS, again, the recording engineer intentionally “adjusts” the length of the recording for some reason.)

I’ve imported audio from digital sources (a CD or MD of the finished audio product works great) and
had zero “slippage” in straight 55 minute video takes.

[Thaxter Clavemarlton]

If you are shooting digital video, and they are recording the audio digitally, they sync should be perfect.

(Unless the recording studio changes the “speed” of the recording for some reason.)