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FCPX 10.3.1 compresses audio

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Nelson Torres
FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 12:18:43 am

After upgrading to FCPX 10.3.1 any audio (aiff) comes in very compressed sounding. I check the original file and it sounds fine, but when playing in timeline or playing source inside FCPX it sounds very squashed. I checked the info of the audio and nothing is added. The 'analyze audio' check box is unchecked. Any info will be greatly appreciated.


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Doug Metz
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 4:58:46 pm

Out of curiosity, what is the sample rate/bit rate of the files you're importing?

Doug Metz

Anode


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Nelson Torres
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 6:54:12 pm

48kHz, 24 bit.

Every frame has its own unique place in space and time.


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Doug Metz
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 7:31:23 pm

Hm. I'm unable to reproduce this issue.

I frequently use SoundStudio to record VO at 24/48 (mono) .aif - files imported to FCPX 10.3.1 sound just like the originals. What else can you divulge about the source of your originals?

Doug Metz

Anode


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Nelson Torres
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 9:33:47 pm

They're converted from 192kbps mp3's. The exported aiff's sound great, but in FCPX they somehow sound really squashed (compressed).

Every frame has its own unique place in space and time.


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Jeremy Garchow
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 9:28:44 pm

What are the pan settings,and are you monitoring, stereo, dual mono?


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Nelson Torres
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 9:35:22 pm

They're panned center stereo files. Stereo monitoring.

Every frame has its own unique place in space and time.


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Jeremy Garchow
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 9:40:19 pm

[Nelson Torres] "They're panned center stereo files. Stereo monitoring."

Try changing that to "Stereo left/right"


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Nelson Torres
Re: FCPX 10.3.1 compresses audio
on Dec 6, 2016 at 9:46:48 pm

That's the ticket! Thank you so much!

Every frame has its own unique place in space and time.


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John Fishback
Re: FCPX 10.3.1 compresses audio
on Dec 16, 2016 at 8:47:22 pm

What you describe sounds like your 2 channels are out of phase. The most noticeable effect of that is the cancellation of bass. Is that the case? Played back in stereo out-of-phase channels it will sound okay, but if your video plays back on a mono system, it'll sound they way you describe.

You can change the audio phase in FCPX by first, applying the Gain audio filter (in the Levels folder in Audio Effects), then in the Audio tab of the Inspector, open (twirl down) the Gain Effect and click on Preset and choose Invert Phase- left (or right), Then, monitor the way you did originally. If it now sounds good, you in fact, had a phase reversal in one of your audio channels. If it still sounds bad, I'm at a loss as to why.


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Doug Metz
Re: FCPX 10.3.1 compresses audio
on Dec 16, 2016 at 8:52:21 pm

[John Fishback] "You can change the audio phase in FCPX by first, applying the Gain audio filter (in the Levels folder in Audio Effects), then in the Audio tab of the Inspector, open (twirl down) the Gain Effect and click on Preset and choose Invert Phase- left (or right)"

Thanks John! There's my Knowledge Nugget for the day... did not know that was in there! :^D

Doug Metz

Anode


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Nelson Torres
Re: FCPX 10.3.1 compresses audio
on Dec 16, 2016 at 8:52:40 pm

Why would a file that plays fine in QT or in other apps become out of phase when brought into FCPX? Do the stereo channels get switched somehow? I noticed it happens with any AIFF I import. This only started happening in FCPX10.3.1.

Every frame has its own unique place in space and time.


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