Capture to discrete audio files from digibeta

[Walter Biscardi]

No, they’re not muxed if you captured all four channels. They need to separated out in the timeline.

You set up the timeline for four Channel Audio Output.

Put your four tracks in the timeline.

Assign each of the four tracks to a different Channel.

You now have four independent channels.

Or if you just want to work with one channel, just put that particular channel in the timeline.

If you need to output four independent channels for another applications, then you’ll need to export each of the four channels independently. This is a very quick process.

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[Johan Nordanfors]

Thanks Walter, that is an excellent answer. Unfortunately I utterly failed to communicate the problem properly. I am preparing media for a dvd project where I have 80 episodes of a TV show that each has 4 different language audio dubs (4 mono channels). What I want to do is capture the audio and video separately so that I can drop everything into my encoder. My issue is that fcp captures the audio files to one single file and to export each file from the timeline is quite time consuming given the rather large amount of media. A 3rd party application with batch capability would sure be nice so I don’t have to do it all manually using the timeline. Or is there a better way I haven’t thought of?

[Rob Alexander]

Hi Johan,

It’s been a long time since I tried to separate Audio and Video on capture as I found that a single AV quicktime file was more reliable but I think even that would leave you with one video file and one audio file containing your four tracks.

What you could do is create a sequence for each of your languages, drop the clip in then select all the sequences in the browser and batch export them right from within FCP.

Cheers,
Rob

[John Pale]

[Johan Nordanfors] “My issue is that fcp captures the audio files to one single file and to export each file from the timeline is quite time consuming given the rather large amount of media.”

You don’t have to do that. If you set your sequence to output 4 separate tracks, not only will you be able to output to tape with 4 discrete tracks, your Quicktime exports will also. Make sure you select Discrete Channels in the export dialog

from Page 46 of Volume III of the FCP 6 user manual

Config Pop-Up Menu
Both the Export Audio to AIFF(s) command and the Export QuickTime Movie command
use a Config pop-up menu to determine whether sequence audio output busses
should be exported individually or as a stereo downmix. However, each command has
a different Config pop-up menu in different locations:
File > Export > QuickTime Movie: The Config pop-up menu is in the Audio Settings
area of the General tab of the Sequence Settings window. There are three options:

Stereo Downmix: This option exports a stereo mix to a single stereo QuickTime audio
track and overrides the Downmix button in the Audio Mixer. For more information,
see “Downmixing Multiple Audio Channels to a Stereo Mix” on page 47.

Channel Grouped: Based on your sequence’s audio output groupings, multiple
stereo and mono output busses are exported to corresponding stereo and mono
QuickTime tracks. For more information, see “About Audio Outputs” on page 40.

Discrete Channels: This option exports channels in the same way as the Channel
Grouped option, but each channel in the QuickTime movie audio track is labeled as a
discrete channel, numbered according to the audio output bus that the channel is
assigned in your sequence. Use this option when you want to preserve your
sequence’s original audio output assignments in your exported QuickTime file.
Note: If you reimport a discrete-channel QuickTime file into Final Cut Pro, the
resulting clip appears to have all mono channels.

[Johan Nordanfors]

Thanks for the suggestions. Now, if I understand you correctly, in order to do a quicktime export as you describe I need to drag every captured clip to the timeline, which is what I am trying to avoid. I was hoping there would be a way to get FCP (or any other software?) to capture directly to 4 discrete mono files plus one video file in one pass.

[Rob Alexander]

So are you trying to achieve a quicktime containing 1 video track plus one audio track per language? i.e. 4 QTs

or are you trying to get one quicktime containing just a video track with no audio and four individual quicktimes each containing one audio track? i.e 5 QTs

[Johan Nordanfors]

That would be 5 individual files, 1 video and 4 audio.

[Rob Alexander]

I think you’re going to have to do this via sequences.

You can capture the video to a separate file but the audio will come in as 4 channels on a single quicktime.

I’d drop the 4 channel clip into a sequence, duplicate it 3 times (to make 4) then delete the 3 unwanted channels per sequence and batch export them.

Best I can suggest I’m afraid.