LAFCPUG: Audio FAQs

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(Clicks & Pops)
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==Clicks & Pops==
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==How do I capture four (or more) tracks of audio at once?==
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'''What's a good workflow for working with HDV on my Mac?
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<br>'''
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<br>Most likely answers:
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<br>
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<br>'''From Graeme Nattress:
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<br>Although many people recommend getting out of HDV as soon as you can, what is usually best for HDV is to edit nativly. Yes - this works fine, as Apple have done a superb job on the codec to make it work right. Then, right at the end of editing, you change the timeline to uncompressed, re-render, and output to your high end HD deck. Quality is maintained as best as possible throughout the whole process, and you don't need a massive raid while editing, only at the end.
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<br>
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<br>Dubbing to HDCAM or DVCProHD might simplify workflows for some people, but is detrimental to image quality (and resolution if you dub to DVCProHD) - dubbing to D5 or HDCAM SR might be fine for quality as they're very lightly compressed, but the others are not. HDV even stores colour with a better sampling than HDCAM!
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<br>
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<br>Also look at:
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<br>
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<br>Apple has very good "White Papers" (PDF) on HDV Workflow including a FAQ. You can find it on the must bookmark '''Final Cut Studio Resources''' page. Look under '''White Papers''' in bottom of page.
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<br>
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<br>[http://www.apple.com/finalcutstudio/resources/additionaltraining.html Native HDV Editing with Final Cut Pro 5]
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<br>[http://www.apple.com/finalcutstudio/resources/additionaltraining.html_blank Offline Workflows for Film and Television using compressed HD.]
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<br>
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<br>Also read Charlie White's tutorial titled "[http://www.digitalvideoediting.com/articles/viewarticle.jsp?id=33410 Native HDV on Final Cut Pro 5"]
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==I'm stupid?==
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'''How do I capture four (or more) tracks of audio at once?'''
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Why am I stupid?
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Assuming you are capturing via Firewire...
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Go to Audio Video Settings> Capture Presets
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Click Edit
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From the QuickTime Audio Settings > Input
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You can choose to :
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*Capture the First 2 channels <br>
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*Capture the Second 2 channels <br>
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*Capture mix of 4 channels <br>
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Mixed you can do in one pass and you still wind up with 2 audio tracks mixed down <br>
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Two pass you will have all 4 channel on separate tracks, but you would capture the First 2 normally, then change it to Second 2 channels.
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Another way
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'''From Martin Baker:''' <br>
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Up to 24 channel audio capture is supported in FCP5. Most capture cards support up to 8 channels of embedded audio through SDI (though Kona 3 offers up to 16 channels of embedded). I'm not aware of any capture cards which offer more than 8 AES or analogue inputs.
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So depending on how many channels you want to capture, the other possibility is to use a separate audio interface such as MOTU or RME. If the interface has Core Audio drivers available then it should appear as a device in FCP's Capture Preset Editor. There may be A/V sync issues with this method although if you can genlock the audio interface then I would imagine it would work fine.
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I doubt there is anyone who has ever tried this but in theory it would work.

Revision as of 20:50, 11 June 2008

How do I capture four (or more) tracks of audio at once?

How do I capture four (or more) tracks of audio at once?

Assuming you are capturing via Firewire...

Go to Audio Video Settings> Capture Presets

Click Edit

From the QuickTime Audio Settings > Input

You can choose to :

  • Capture the First 2 channels
  • Capture the Second 2 channels
  • Capture mix of 4 channels

Mixed you can do in one pass and you still wind up with 2 audio tracks mixed down
Two pass you will have all 4 channel on separate tracks, but you would capture the First 2 normally, then change it to Second 2 channels.

Another way

From Martin Baker:
Up to 24 channel audio capture is supported in FCP5. Most capture cards support up to 8 channels of embedded audio through SDI (though Kona 3 offers up to 16 channels of embedded). I'm not aware of any capture cards which offer more than 8 AES or analogue inputs.

So depending on how many channels you want to capture, the other possibility is to use a separate audio interface such as MOTU or RME. If the interface has Core Audio drivers available then it should appear as a device in FCP's Capture Preset Editor. There may be A/V sync issues with this method although if you can genlock the audio interface then I would imagine it would work fine.

I doubt there is anyone who has ever tried this but in theory it would work.

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