Input Delay — Crown I-Tech HD, PIP-USP4 & VRack12000 / VRack4x3500

The Delay Block contains a signal delay display. You may enter the delay  in either milliseconds, feet, or meters.

Note: Delays added through the delay block are in addition to any latency delay that may already be occurring as the result of a variety of factors. Fixed latency delays are always present in the module itself:

Sample Rate

48kHz

96kHz

Analog to Digital Conversion:

250 microseconds

94 microseconds

DSP Processing:

666 microseconds

333 microseconds

Digital to Analog Conversion

196 microseconds

48 microseconds

Amplifier Latency:

54 microseconds

54 microseconds

Total Latency

1,116 microseconds
1.166 milliseconds

529 microseconds
0.529 milliseconds

 

These delays are separate from any CobraNet transport latency or FIR Filter processing latency.

There is a separate Driver Delay for driver alignment. It is typical to use the Input Delay to compensate for distance from a point source and to use the Driver Delay for driver to driver alignment.

The controls are:

On/Off

The On/Off button is a latching button that engages the Delay feature. By simply turning off the delay you will bypass the delay.

Entry Field

You can enter the amount of delay into any of the following controls; the other controls will update accordingly. The software will calculate the seconds of delay based on the speed of sound being 1127.500 feet per second and 343.662 meters per second.

Seconds

This value has a range of 0 to 4 seconds in a step size of 21 microseconds. You can enter the data into this control in either a decimal form (0.175 seconds) or through units (175 milliseconds).

Feet

This control allows you to enter the amount of delay in feet. The range is 0 to 2,255 feet.

Meters

This control allows you to enter the amount of delay in meters. The range is 0 to 687 meters.

Additional Information

If you are connected to the Internet you can find a video overview of this feature at:
http://www.crownaudio.com/tutorials/