Adding wav files and previewing without rendering?

[David Roth weiss]

Marcus,

If you transcode your WAV files to aiff uisng iTunes or another app you’ll get better realtime performance.

But, I suspect you also are running with minimal RAM. How much RAM do you have in your machine?

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.

[Marcus Bird]

Well im working on an offline from my powerbook with 2GB RAM, I would expect that to be reasonable? If I convert the wav files to aiff files will I still have to render them out to preview?

[David Roth weiss]

48khz Aiff is the native audio format in FCP, so yes, you should expect better RT performance if you transcode. Give it a shot with one file and check it out.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.

[Andreas Kiel]

There is NO difference between WAVE and AIF in performance – but WAVE is the better file format in the workflow as it does with the BWAV format support metadata which FCP can read and will keep in the project, whereas the Apple AIF is not a standard AIF. So other apps in a workflow may fail with that.
If you need to render and the “45 kHz” is not a typo your settings don’t match.
FCP somehow always expects 48 kHz for whatever audio format you import – which have to match your current project settings with 6.0.x or your AV settings at startup with versions below.
So if you are running your FCP on a NTSC system and import a WAVE file – especially a BWAV file – FCP will/may do a virtual resample. This IS THE CORRECT way if you do have the the CORRECT audio/video settings.

Andreas

Spherico
https://www.spherico.com/filmtools