Delay (Dly) - Extron electronics DMP 128 User Manual

Delay (DLY)

The delay processor block, when inserted, provides a means to delay the audio signal.
Audio delay syncs audio to video or can time-align speakers that are placed at different
distances from the listener. The DMP 128 can set delay by either of two criteria: time or
distance (feet or meters).
The default unit setting is time with a range of 0.0 ms to 200.0 ms adjustable in 0.1 ms
steps. Default is 100.0 ms.
Settings are controlled with a vertical slider and indicated in the readout field. Click within
the readout field to change the value, or change the number and press <Enter>, or press
<Tab>, or click away from the field.
Figure 34.
Slider adjustments made in feet or meters correspond incrementally to the distance required
to make 1 ms, or 5 ms adjustments (detailed in the table below). If more precision is
required, enter time in 0.1 ms increments into the readout field.
Method
Click + drag
Focus + arrow
Focus + Page Up/Down
When distance (feet or meters) is chosen, the conditions (temperature) field becomes
available and can be set either by degrees Fahrenheit or Celsius by clicking the appropriate
selection button. When entering a distance, time delay compensation is automatically
modified based on differences in the speed of sound due to air temperature.
Default is 70 degrees Fahrenheit.
NOTE: When using distance (feet or meters), set a temperature value first. Then set
the distance.
Delay Dialog
Time
1 ms
1 ms
5 ms
Feet Meters
~1.1 feet ~0.3 m
~1.1 feet ~0.3 m
~5.6 feet ~1.7 m
DMP 128 • Software Control 50