Grass Valley K2 TimeDelay Application v.7.1 - Manual (Page 17)

October 2009 K2 TimeDelay User Manual 17
Recovering from K2 TimeDelay disruptions
Each audio meter indicates the final (adjusted) audio level on the audio input or output
for that track. A decibel scale is displayed alongside the sliders.
To adjust the input gain for the record channel or the output gain for a play channel,
move the slider on the meter. To snap all the gain levels back to Unity default, click
the Unity button. To change all gain levels proportionately when any one of them is
moved, click the Gang checkbox.
Recovering from K2 TimeDelay disruptions
If K2 TimeDelay is disrupted, due to operator error or power cycle, it restarts
automatically at the correct position. (To restart TimeDelay without logging in, you
need to configure auto login in Appcenter. For more information, see the K2
AppCenter User Manual.)
To initiate auto recovery, AppCenter must be restarted, either manually or
automatically on reboot. TimeDelay reloads the clip, jumps to the correct position,
and begins recording or playback depending on which operations were in progress
during the failure. It fills in black video where the system was not recording, so that
the clip length and delays are exactly maintained.
Purging media with K2 TimeDelay
By default, K2 TimeDelay automatically starts purging media after the longest
playback delay, but you can specify a longer time interval after which purging will
begin. This could be useful if you want to use the underlying clip in another
application, potentially on another server that shares the same storage. The purge
interval is the period between the start of recording and the start of the media purge.
You are notified if there is not enough disk space to support recording for this time
interval. If so, the application allows the record to start on the assumption that you will
make sufficient room manually. If the server runs out of storage, recording stops.
To set the time interval for purging, do the following:
1. Click the Settings button or select Settings menu item from the Menu to open the
TimeDelay Settings dialog box.
2. Select the Buffer page.
3. Check the Start purging after check box and enter a time interval. If the specified
time interval is shorter than the longest playback delay, then purging does not begin
until after the longest playback delay.