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Posted by Pat Horridge on 01/31/06 11:57
"Nappy" <noemail@all.com> wrote in message
news:b1sDf.5555$2O6.3581@newssvr12.news.prodigy.com...
>
> "Pat Horridge" <pat@remove-spam.vet.co.uk> wrote in message
> news:drl9l0$eqj$1$8300dec7@news.demon.co.uk...
>> Hang on we keep getting this "unlocked audio" the root of all ills.
>> Unlocked DV audio only means the audio sample is allowed to slide around
> by
>> a defined window and this window is very small (Less than a frame I
>> think)
>> so there can be no cumlative problem.
>> I would suspect it's more likely a capture problem with premiere as is
>> confimred by the fact that the file can be played back in other software
>> without error.
>> Smaller chunks may help but that's just a work around not a cure.
>>
>
> This is something that XL1 owners have been dealing with since day 1.
> Google
> it for archival discussions on it. The OP's problem is cumulative. That's
> why the suggestion of capturing smaller clips works.
>
>
It would be fasinating to know how it possible happen.
The Video and Audio are recorded on the tape in sync.
Playback is in sync.
Captured DV stream played in other players on the same computer playback in
sync.
But played in Premier sync slips?
Can't see how the Firewire could drift audio and video as they come off tape
together and are packaeged and sent down the firewire.
For sync to slip the audio would have to be delayed or advanced over time.
I'd suspect the editing package which I presume is splitting the audio and
video so they can be manipluated and for some reason at this point it is
loosing the sync relationship.
Possibly the camera is recording the DV stream with slightly off sample
audio and this only shows up when the audio is seperated forom the video and
the audo sample is then clocked at the expected rate rather than the actual
rate.
This would need some testing to prove.
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