By default Intermec Mobile Computers have a button for quickly accessing the "Recorder" app which may be pressed by mistake, generating huge audio files that fill up the internal memory. A quick search from the "Memory" app revealed the file that was causing the issue:
To prevent accidental audio recordings that fill up the internal memory of the unit, the record button needs to be disabled:
Go to 'Start' > 'Settings' > 'Personal' > 'Buttons'
Highlight 'Record Button'
Tap the 'Assign a program' drop-down menu from the bottom of the screen and select '<None>'