Set that bin you need to capture from as the Logging Bin
Launch Log and Capture
In Clip Settings, select Audio only (turn off video)
Select “Batch” in the Log and Capture Window
UN-check “Use Logged Clip Settings” This forces FCP to capture using whatever is set in the Log and Capture window, in this case, audio only.
Select All Items in Logging Bin
Capture.
Note, this will blow away all the of the clips currently in the bin and recapture them as audio only.
Walter Biscardi, Jr.
https://www.biscardicreative.com
HD Editorial & Animation for Food Network’s “Good Eats”
HD Editorial for “Assignment Earth”
“I reject your reality and substitute my own!” – Adam Savage, Mythbusters