Sony FDR-AX55 Manual page 157

Empty Music (Models with the USB IN/OUT jacks)
You can delete all music files stored on this product.
1. - [Setup] - [
[173] How to Use
TC/UB (Time code/User bit)
You can record the time code (TC) and user bit (UB) as the data attached to images.
What is the time code?
Time code is the function that assists advanced image editing by recording
hours/minutes/seconds/ frames on image data through the time that progresses while
recording.
What is the user bit?
You can record any information such as the date/time/scene number (8 digits hexadecimal
number) as the user bit. The user bit is useful when editing a movie from images recorded by
multiple cameras.
1. - [Setup] - [
Descriptions of menu items
TC/UB Disp:
Sets the display for the counter, time code, and user bit.
TC Preset:
Sets the time code.
UB Preset:
Sets the user bit.
TC Format: (1080 60i-compatible device only)
Sets the recording method for the time code.
TC Run:
Sets the count up format for the time code.
TC Make:
Sets the recording format for the time code on the recording medium.
UB Time Rec:
Sets whether or not to record the time as a user bit.
To set the time code (TC Preset)
Playback Settings] - [Empty Music].
Menu operations
TC/UB] - desired setting.
Setup