Extracting audio from video file using VLC
It may be the case that your video cameras capture video in a raw .MTS format, or in another format that you cannot use with ELAN. Or that you just want to use the audio from a video to do your transcriptions. In order to begin working on transcriptions with ELAN while still in the field you can extract an audio track of any video format using VLC (VideoLAN).
Open up your VLC media player and go to the Media menu:
You are presented with a new window. Under the File tab, click Add… on the right to navigate to your selected video file in your directory:
Then click on the Convert/Save button at the bottom right and select Convert from the drop-down menu:
Select the appropriate profile, I would suggest Audio – CD, which would create a .wav file.
To confirm that you are saving a .wav file with appropriate sample and bitrates, click on the tools icon to the left of your selected profile. Select the Audio Codec tab and check to make sure you are creating a .wav that has a bitrate of 128 kb/s and a sampling rate of 44100 Hz.
Click Save when you have finished.
Name your file and save it in the same folder as the original video file.
Then simply click on Start and you will see the progression of your file as it converts to a .wav file.
After reading through this guide, if you still have questions, or you wish to request a service, feel free to email me (firstname.lastname@example.org), or better, visit the CoEDL Service Request Form. CoEDL members use the Member login at the bottom of the CoEDL webpage. Then click the General Members tab, the link to the request form is in the left-hand panel.