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Using ELAN with multiple-track recordings

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Using ELAN with multiple-track recordings

Posted by drosenblum at 2009-11-02 18:30  

We are recording natural conversation with separate audio tracks for each speaker (as well as at least video recording per event). We would love to transcribe directly into ELAN, but would like to be able to time-align to separate tracks, rather than merging them into one .wav file.

Is there an efficient way to do this in ELAN? Has anyone made a plug-in that enables ELAN to do this? (If the answer is no to both questions, what applications would you recommend instead? We are working on Macs and would prefer something that can work on a Mac OS, but could run Windows programs if we have to.)

Thanks.

Re: Using ELAN with multiple-track recordings

Posted by keduarte at 2009-11-03 15:52  

drosenblum,

So you've managed to align the media files in ELAN, right? And now you want to annotate them, but the annotations are going to have time stamps from the global timeline, not from any of the original files. You could make an IMDI metadata file and include the offsets for each of the files, but I'm not sure that's what you're looking for.

Kyle

Re: Using ELAN with multiple-track recordings

Posted by hasloe at 2009-11-05 09:53  

If I understand the situation correctly the short answer is just: no.
You can link any number of media files to an annotation document (via File -> New or later via Edit -> Linked Files) but the audio will always be taken from the first file in the list (the "master" media). So, if the first file is a video, you'll hear the audio from the video file, if the first file is an audio file you'll hear that audio file.
It is always possible to change the order of the files in the list (and thus the audible audio track) but that is not done "automatically". So, that's not very convenient. It is not (yet) possible to set the volume of all media files to "100%".
Also, the waveform viewer always visualizes only one audio (wav) file at a time.

I don't know of any application capable of doing what you want.

-Han

 

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