Pre-roll Buffers on 7-Series Recorders
Q: What kind of record buffering, or pre-roll is available on a 7-Series recorder?
A: A user can select to engage pre-roll buffers of up to 10 seconds (sample rate/bit depth dependent). This means that the recorded file will begin at the moment in time when the record button is pressed minus the number of pre-roll seconds set in the Setup Menu. Pre-roll is useful to add additional header information on the file or to capture audio that may have been missed by not engaging record. Pre-roll is a standard feature on file-based video cameras, as well as most file-based audio recorders.