OK, after some messing around hitting playback twice isn't entirely useful 
except for finding a general spot I'm looking for as it's hard to control 
reliably. However the label method is working out great. I just insert a label 
where I think I need to be, hit play, and just keep moving the label up until 
I've gone one frame too far. When I've gone too far I just go back a frame or 
two and that's where I need to be.




________________________________
From: Dan Hibiki <[EMAIL PROTECTED]>
To: cinelerra@skolelinux.no
Sent: Thursday, December 4, 2008 1:44:16 AM
Subject: Re: [CinCV] Help syncing sound to video


I just tried something that I cannot believe I didn't think of. If you hit play 
then stop the playback real quick (hitting spacebar twice is the easiest way) 
you can get cinelerra to advance a single frame while still getting it to play 
sound.You have to time it right too, because if you hit play the second time 
too fast it will just jump back to the original frame without playing any sound 
at all. Not quite as convenient as it could be if the frame forward button did 
this, but it works. By combining this with labels I seem to be able to sync 
things just as accurately as I was able to in Premiere. 



________________________________
From: Kurt Georg Hooss <[EMAIL PROTECTED]>
To: cinelerra@skolelinux.no
Sent: Monday, December 1, 2008 3:47:33 PM
Subject: Re: [CinCV] Help syncing sound to video


Yes I remember I missed that feature too sometimes,
in FinalCut one can actually hear those 40 milliseconds of sound
when just one frame is played. It makes a lot of sense.

In cinelerra, I have learned to help myself by an iterative procedure:
place a label close to the sound where you want to start the clip,
and then play back from the label to hear how close it is.

it is not always easy to hit exactly the right point,
but by correcting the label position several times,
one can get fairly accurate.

Hope this helps...
Cheers, Georg




On Monday 01 December 2008 08:17:35 Dan Hibiki wrote:
> Hi, I've just started recently getting into editing using Cinelerra over
> the past couple of weeks. I've read most of the simple tutorials and I've
> searched around the mailing list archives so sorry if this has an obvious
> answer.
>
> I'm trying to edit together a music video and the problem I'm having is I
> can't figure out a reliable way to accurately sync clips up with the sound.
> For example a certain instrument plays I might want a clip to start playing
> at that exact frame. Last time I did any video editing was in an old
> version of Adobe Premiere where I was able to accomplish this mainly by
> dragging the timeline cursor around, as sound would play as you did this
> even if you only moved forward a single frame. Doing that, I could pinpoint
> the exact moment I was looking for in the audio and drop the clip in or
> just watch the video playback and see if everything was happening in sync.
> In Cinelerra however if I press the button that moves the playback one
> frame forward no sound is played. As for using the waveform graphic, it's
> not very useful for what I need.
>
> So does anyone have any suggestions? For example, is there a way to control
> playback speed and just have the preview run in slow motion? I could export
> pieces and preview them in mplayer since that has slow motion playback but
> that would be tedious.



-- 
dr. kurt georg hooss
kurts film / schoepfung & wandel
breite strasse 6-8, d-23552 luebeck
kurts-film.de

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