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).
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