Audio files can be uploaded to PDM II from a networked computer via the web GUI in the
Multiple build files can be stored and selected as needed from the front panel or remote user interface.
If the selected build file is exactly as long as the Delay Size, PDM II will smoothly join delayed audio at
normal speed when the file finished playing. If the file is not the same length as the Delay Size, it will still
join delayed audio when the file finishes but will subtly speed up or slow down the output as needed to
achieve the specified pre-set delay.
Alternate Build Mode 2 - PreRoll
In some instances, you may wish to build your delay without changing speed or playing an insert file.
PreRoll Mode lets your talent start their introduction before the scheduled program time and is often used by
studios feeding a network rather than a local transmitter.
Set the Build Mode to "PreRoll" and press Build. The talent should begin talking earlier than program air
time, specifically by the same number of seconds as the Delay Size. This early start will be heard in the
studio only.
For example, if you feed a network at 12:00 Noon and use a 10-second delay, you would back-time and start
the PreRoll at 11:59:50, 10 seconds before Noon. PDM II begins delivering the delayed content at 12:00:00.
Figure 3 - PreRoll mode
As soon as Build is pressed, the front panel LCD will begin to count up with numbers and a bar graph as
shown below in Figure 4.
Figure 4- Delay building screen
While PDM II is counting, studio audio is being sent to the internal delay memory and output audio is muted.
When the full delay time is reached and the solid bar fills the display, it will begin playing delayed audio to
the air chain.
