Instruction manual
Waveform Monitoring
57
Error Logging Display
Error Logging records errors in video and audio and is indispensable for unattended operation, such as
during long conversions. Errors may be logged for color, brightness or audio threshold levels as well as
loss of video signal, change of video format or audio silence. After setting the parameters which define
when an error should be logged, you can choose to start or stop error logging, save the log to a file, or
clear the log. These functions can be selected from the buttons in the Error Logging Display or from
the Error Logging pulldown menu.
Errors are recorded against timecode and time of day to make them easy to find. If the timecode is not
present, errors can be found by reviewing the time of day at which they were recorded.
In the Full Screen view, Histogram and Error Logging Displays share the same area of the UltraScope
interface. Select the LOGGING button, below the Histogram Display, to switch to Error Logging Display.
Select the HISTOGRAM button to switch back to the Histogram Display.
In 2-up view, Histogram and Error Logging Displays can be viewed on two panels simultaneously.
Select the START button to commence logging. In Full Screen view, you can switch back to the Histogram
Display and UltraScope will continue to perform error logging until you choose to stop it.
When error logging is being performed, the STOP button replaces the START button. When the STOP
button has been selected, you can choose to START again and any new errors will be appended to the
existing log. When error logging stops, you can choose to SAVE the log to a CSV file or alternatively
CLEAR the log. If no errors have been recorded, the SAVE and CLEAR buttons will not appear. The CSV
file can be analyzed in many applications including spreadsheet and database software.
By default, error logging is performed using the EBU-R103 standard set by the European Broadcasting
Union. This standard is popular worldwide and is commonly used as a template for making new error
logging profiles.
From the Histogram Display, select the Logging button to
switch to the Error Logging Display.