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Dropping frames only when playing audio files

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Matt Whittemore
Dropping frames only when playing audio files
on Jan 5, 2014 at 1:52:04 am

Hi there...today I noticed that FCPX is dropping frames only while playing an audio file. It doesn't matter whether I have "better performance/better quality" selected or using optimized or proxy. In preferences, under "playback" I have both boxes selected (If a frame drops, stop playback and warn & If a frame drops due to disk performance...). When I deselect the first box I'm no longer warned. I'm running FCPX 10.1 on Mavericks and the media is on an external thunderbolt RAID. The audio files are .wav.

Any advice?


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Dave Jenkins
Re: Dropping frames only when playing audio files
on Jan 5, 2014 at 4:25:43 am

I'm glad you brought this up. This was happening to me today and I thought my new MacPro Tube 3.5GHz 6-Core with a TB2 Pegasus raid isn't performing very well. My audio files were AIFF, must be a bug.

Dajen Productions, Santa Barbara, CA
MacPro 3.2GHz Quad Core - AJA Kona LHe+
FCS 3 OS X 10.7.4
FCP X, Logic Pro, Squeeze, Filemaker 10.8.3


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Matt Whittemore
Re: Dropping frames only when playing audio files
on Jan 5, 2014 at 4:05:36 pm

Must be...I'm just running a 27" iMac.


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Doug Suiter
Re: Dropping frames only when playing audio files
on Jan 14, 2014 at 12:47:42 am

Yep - me too. I am getting a lot of beach balling since 10.1 and i have been trying to isolate the issue so I turned on the stop and warn when frames were dropped. I thought it was Multicam or synched clips that were the issue but was surprised this morning to see that frames were being regularly dropped with audio only clips.

I thought I'd take my thunderbolt raid out of the equation and moved the library to the internal SSD. Same issue. The files are .wav


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