Epiphan Pearl Mini Live Video Production System - Manual (Page 337)

Pearl Mini User Guide Extract tracks from a recording
3. Repeat the process and specify the file you want to join to the first file. You can keep adding as many
files as you want to join together. For example, specifying a second file looks like this:
ffmpeg -i C:\Users\JoesComputer\downloads\Program_A_May11_16-24-56.avi -i
C:\Users\JoesComputer\downloads\Program_A_May11_12-26-14.avi
4. Use the -c copy command to specify the output file. After the command, type in the location, file name
and file extension that you want for the concatenated file. The full line looks like this:
ffmpeg -i C:\Users\JoesComputer\downloads\Program_A_May11_16-24-56.avi -i
C:\Users\JoesComputer\downloads\Program_A_May11_12-26-14.avi -c copy
C:\Users\JoesComputer\Desktop\Concatenated_File.avi
5. After completing the process, you will be able to access your new file in the location you specified. The
file moves straight from the first video into the second without a pause.
You can this process to join multiple files; however, the more files you join, the greater the chance
that some audio desychronization can occur between the clips.
Extract tracks from a recording
Recorders combine multiple channels and audio sources together in a single multi-track file. You can create a
copy of a recording using only select tracks. This feature is supported for .AVI, .MP4 and .MOV recordings
only. MPEG-TS does not support track extraction.
Specific track versions of recorded files are not included in any automatic file transfers and need to be
downloaded manually. Click the extracted track filename to manually download, see
Download recorded files
manually .
Ensure you have enough storage space for the extracted files before you start this procedure. To check how
much storage space is available on the SD card, see
Storage space maintenance .
To create a duplicate recording file with only select tracks:
1. Login to the Admin panel as admin or operator , see Connect to the Admin panel .
2. From the Recorders menu, select a recorder. The recorder page appears.
3. Click the multi-track icon beside the recording. A list of tracks appears.
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