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Sample Rate problems in FCP 7 44.1 KHZ and 48.0 KHZ
Hey there, Anyone know if audio sample rate affects video playing speed (if the audio was recorded with the video, for example a built in mic on a DLSR)???
I have footage in my sequence (converted to appel pro res HQ 422) and its native audio (48.0 KHZ)
The audio I want to use, is separately recorded and is all in 44.1 KHZ.
How come when I adjust sequence settings to Audio: 44.1 KHZ my separately recorded 44.1 still drifts away from my original synch point? Even when the original video is no longer linked to the 48.0 KHZ audio it was originally created with.
Why would there be an option to work in 44.1 KHZ if FCP cant handle it?
I dont understand at all, have tried what seems like everything.
any help would be ace.
thanks
Cosmo Jarvis
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3 Replies
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They are NOT related.
FCP likes 48k best.
Run your audio thru Soundtrack Pro and convert it to 48k and then import.
The drifting audio would be related to frame rates.Chris Tompkins
Video Atlanta LLC -
Thanks for the reply. I cant use soundtrack pro. But which frame rates work best with which sample rates?
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There are lots of free programs that can convert 44.1khz to 48khz, including STP and Compressor which are included in the Final Cut Suite. All your files must be converted and before they are imported into FCP, make sure that the FCP default project is changed to match the frame rate and timecode type of the project you are importing into. Otherwise FCP stamps the wrong rate.
Only use 16 or 24 bit files.
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