Rieni, What is it that your Tascam stays in sync with for 30 minutes? A camera perhaps? Could it be that both are drifting but in the same direction?
I was interested to see that your Zoom goes 'off beat' by 1/24th second every 5 minutes. I wonder if it does that even if you play a recording back on the Zoom itself? If it is occurring when you play a recording back on a different piece of equipment it might be that the playback equipment is running at the wrong speed? Julian Bristol, England ******************************** On 01/09/2011 14:31, [email protected] wrote: > Re: Tascam DR 100 and Audio out of Sync > Posted by: "Rieni" [email protected] polderien > Date: Wed Aug 31, 2011 9:01 am ((PDT)) > > Again, the Tascam stays in sync for at least 30 minutes without > requiring a Genlock. It's the minimum a device like that should be > able to do, they are designed for musicians originally and you don't > want the recording go off-beat by 1/24th of a second after 5 minutes > already, right? That's what the Zoom does and it's really bad. I'm > not ditching Zoom though, they make great pre-amps/effect boxes for > electric guitars. > > And all 24fps camera capture at 23.976 fps exactly. Have some trust > in modern technology please :-) > > (could someone pls explain briefly the reason for 23.976 instead of > 24fps? I keep forgetting) > > Rieni > > At 31-8-2011 17:16, ultravy wrote: >> The reason is simple - digital devices like cameras, audio recorders >> etc are driven by a clock called a crystal (or oscillator). These >> clocks are not perfect, they may run a little slower or faster in >> one device than in another, and even in different models of the same >> device. Worse, they often change speed a little with temperature, so >> they typically will speed a little the longer the device is running. >> This basically means that all un-synced devices may run at slightly >> different speeds and will also gradually drift in or out of sync >> with one another. >> >> So an audio recorder recording at 48kHz may actually be recording >> slightly faster or slower. And a camcorder recording at 24fps may >> also not be exactly capturing at 24fps. They should both be close, >> but if you record long enough, they will gradually drift (how much >> depends on how lucky you are with any two devices). ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Adobe-Premiere/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Adobe-Premiere/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
